what’s the answer to this question?

Whats The Answer To This Question?

Answers

Answer 1

RR is hom--ogenous red

Rr is heter---ogenous red

R is dominant

r is recessive

What is the Puneet square used for?

A Punnett square is a graphical representation used in genetics to predict the probability of an offspring having a particular genotype (genetic makeup) based on the genotypes of the parents. The Punnett square is named after Reginald Punnett, the British geneticist who first described it.

The Punnett square is a simple and effective way to visualize the possible outcomes of a genetic cross between two individuals, where the columns represent one parent and the rows represent the other parent. The cells of the Punnett square contain the possible offspring genotypes that result from the combination of alleles (versions of a gene) from each parent.

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Related Questions

which of the following statements is true? select an answer and submit. for keyboard navigation, use the up/down arrow keys to select an answer. a if an argument has a deductively valid form, its premises entail its conclusion. b if an argument's premises entail its conclusion, the argument has a deductively valid form. c the disjunction of two sentences is only true if both sentences are true. d even if an argument has the form of modus ponens, its premises may not entail its conclusion.

Answers

A strong argument is one that has true premises and is legitimate. In this sense, the word "sound" means "true." A faulty argument is one that has a false premise and is therefore inadmissible.

A strong argument is only convincing if all of its premises are true. Each claim or proposition has a premise that serves as its basis. A valid argument cannot, by definition, have a false conclusion and all true premises. As a result, a flawed conclusion indicates an incorrect premise in an argument. The argument is deductively valid when it is impossible for both the premises and the conclusion to be incorrect. A claim is deductively valid if and only if it is impossible for both of its premises to be true. As long as anything is true, it is regarded as sound.

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Lysosomes are important to many eukaryotic animal cells because they contain
a. photosynthetic pigments.
b. starch molecules for energy storage.
c. their own DNA molecules.
d. cell wall materials.
e. digestive enzymes.

Answers

Many eukaryotic animal cells depend on lysosomes because they house digesting enzymes.

The purpose of lysosomes in eukaryotic cells

Every eukaryotic cell has membrane-bound organelles called lysosomes. They are well known as terminal catabolic stations that scavenge metabolic raw resources and remove waste from cells to maintain essential biosynthetic reactions during times of starvation.

What function do lysosomes serve?

Numerous cell processes involve lysosomes. They disassemble extra or damaged cell components. They could be used to get rid of invasive viruses and bacteria. Lysosomes can assist a cell in self-destruction through a process known as programmed cell death, or apoptosis, if the damage is irreparable.

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phosphofructokinase, one of the major regulatinbg enzymes of glycolysis is allosterically inhibited and activated by

Answers

ATP inhibits the enzyme phosphofructokinase, and fructose-2,6-bisphosphate and AMP activate it. Thus the correct answer is AMP for the same.

Glucose-6-phosphate allosterically inhibits the enzyme that controls hexokinase. The molecule that controls glycolysis and gluconeogenesis, phosphofructokinase, is activated by fructose-2,6-bisphosphate and AMP and inhibited by ATP. Pyruvate kinase is allosterically inhibited by ATP but is then activated by fructose-1,6-bisphosphate. While glycolysis is controlled similarly to anabolism, gluconeogenesis is not. Reciprocal regulation is the term used to describe the occurrence where the same activity, such phosphorylation, has opposing effects on metabolic pathways. The reverse control is essential when related metabolic pathways are engaged in the same cellular area.

The complete question is:

Phosphofructokinase, one of the major regulating enzymes of glycolysis is allosterically restricted and activated by ..............

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Different types of cells can have certain organelles and structures in common. Which types of cells definitely contain cell walls?
A. plant and animal cells
B. plant and eukaryotic cells
C. plant and prokaryotic cells
D. animal and eukaryotic cells

Answers

Different types of cells can have certain organelles and structures in common. Those cells definitely contain cell walls are plant cell and prokaryotic cells So correct option is (C)

Cell wall is the structural layer which consists of polysaccharides and is present outside the plasma membrane. It can be tough, rigid and flexible. It provides protection to the cell from the external factors that could be harmful to the cell and also provides structural support.

Cell wall of Prokaryotic cell: The cell wall of the prokaryotic cell is present beneath the capsule. Cell wall prevents the interior of the cell from any injury, maintains the shape of the cell and prevents it from bursting when the cell intakes the excess water. Cell wall of a Prokaryotic cell is made up of peptidoglycan, which is the polymer of modified sugar that is NAM (N-acetyl muramic acid) and NAG (N-acetyl glucosamine).

Cell wall of plant cell: The cell wall of plant cell is a specialized form of extracellular matrix that surrounds every cell of the plant. Cell wall provides structural support to the cell and protects the cell against infection and mechanical stress

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which age structure diagram best fits the population of the united states? age structure diagram a. stage 3: stable growth b. stage 1: rapid growth c. stage 2: slow growth d. stage 4: zero growth

Answers

The age structure diagram that best fits the population of the United States is (D) stage 4: zero growth.

A stage 4 age structure diagram typically shows a relatively equal distribution of individuals across all age groups, with a slight bulge in the middle age groups (e.g. 30-50 years). This reflects a population that has low birth rates, low death rates, and a low population growth rate, resulting in a stable population size.

This description closely matches the current demographic situation in the United States, where the birth rate has been declining over the past few decades, and the population growth rate has been relatively low. Additionally, the largest age cohort in the United States is currently middle-aged adults, with relatively even numbers of individuals in the younger and older age groups.

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how are membrane transport proteins like enzymes? how are membrane transport proteins like enzymes? both require energy to function properly. both are made from rna molecules. both are specialized to the materials they act upon. neither can change as a result of gene mutations.

Answers

Protein activation is a function of protein-phosphorylating enzymes in the control of gene expression.

Protein phosphorylation is essential for cell signaling, gene expression, and differentiation in eukaryotes. Both the general management of DNA replication during the cell cycle and the systems that deal with replication blockages brought on by stress include protein phosphorylation. One of the fundamental processes needed for the coordination of cellular and organic functions, such as the control of metabolism, proliferation, apoptosis, subcellular trafficking, inflammation, and other essential physiological processes, is protein phosphorylation. Protein activation thus contributes to the control of gene expression through protein phosphorylating enzymes. Ribosomes, which are substantial molecules in charge of producing biological proteins, are present in all cells.

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vitamin k serves as a cofactor in chemical reactions that add carbon dioxide molecules to various proteins, thus enabling these proteins to bind to . multiple choice question. oxygen vitamin e calcium hemoglobin

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vitamin k serves as a cofactor in chemical reactions that add carbon dioxide molecules to various proteins, thus enabling these proteins to bind to "hemoglobin."

Vitamin K is an essential nutrient that plays a key role in blood clotting. It serves as a cofactor in the chemical reactions that add carbon dioxide molecules to certain amino acids in blood-clotting proteins, which allows these proteins to bind calcium ions and form a stable blood clot. This process is known as "post-translational modification," as it occurs after the protein has been synthesized.

One of the proteins that requires vitamin K-dependent post-translational modification is prothrombin, which is converted into thrombin during the clotting process. Thrombin, in turn, converts fibrinogen into fibrin, which forms the structural framework of a blood clot.

Hemoglobin is a protein found in red blood cells that is responsible for carrying oxygen from the lungs to the body's tissues. It does not require vitamin K-dependent post-translational modification to function.

Vitamin E is an antioxidant that helps protect cell membranes from damage caused by free radicals. Calcium is a mineral that is important for bone health, muscle contraction, and nerve function.

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Which of the statements is true regarding glycine? R=H a. Glycine is a polar amino acid. b. Glycine is a large amino acid. c. Glycine is an asymmetric amino acid.
d. Glycine increases the flexibility of the peptide backbone.

Answers

It is true that glycine makes the peptide backbone more flexible.

In addition to its multiple functions as an antioxidant, anti-inflammatory, cryoprotective, and immunomodulatory substance in peripheral and neurological tissues, glycine functions as a neurotransmitter in the central nervous system. Schizophrenia, stroke, benign prostatic hyperplasia (BPH), and several uncommon inherited metabolic disorders are all treated with glycine.

Additionally, it is used to shield the liver from the damaging effects of alcohol and the kidneys from the detrimental side effects of several medications used following organ transplantation. Glycine is an amino acid that supports cellular development and health. One of the amino acids necessary for the body to produce the antioxidant glutathione is glycine. In order to combat free radicals, which can otherwise lead to oxidative stress and harm cells, proteins, and DNA, cells create glutathione.

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mention two organelles operate partially autonomously in the cell and share many similarities with bacteria?

Answers

Chloroplasts and mitochondria function somewhat independently within cells and resemble bacteria in many ways.

Are bacteria dangerous?

The majority of the bacteria are not harmful, however some can be harmful. Pathogens include the germs in question. Micro - organisms that can produce disease are called pathogens. They can multiply swiftly within your body and release toxins that can spread infection.

What roles do bacteria play?

To name a few functions, the microorganisms in our systems help break down the food we eat, assist us access nutrients, and neutralise toxins[7]; [8]. They also contribute significantly to the fight against diseases by shielding colonised surfaces from invasive bacteria. [8]; [9].

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How does temperature and rainfall affect the distribution of biomes?

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Answer:

Temperature and rainfall affect the distribution of biomes because biomes are determined by climate, which in turn is largely determined by temperature and precipitation. Climate dictates which species can survive in a certain area and therefore the type of biome that will form. Warmer temperatures and more precipitation will typically lead to more productive biomes, like tropical rainforests, while colder temperatures and less precipitation will lead to less productive biomes, like deserts.

Explanation:

What is the first stage of meiosis during which a cell is considered haploid?

Answers

Answer:

(Prophase II) is the first stage of meiosis during which a cell is considered haploid. A haploid cell will comprise a single copy of each chromosome, whereas diploid cells comprise more than one copy, which is referred to as the homologous pair.

Explanation:

Answer:

prophase I

Explanation:

The first stage of meiosis during which a cell is considered haploid is called prophase I. During prophase I, homologous chromosomes pair up and exchange genetic material in a process called synapsis. The result of this exchange is that each chromosome now consists of a mixture of genetic information from both the maternal and paternal chromosomes, making the cell haploid.



ALLEN

what is the least effective way to lower your saturated fat intake?

Answers

The least effective strategy to reduce your intake of saturated fat is to switch to ice cream from sherbet (b).

What is the way to lower your saturated fat intake?

Dairy, beef, and poultry are the main sources of the majority. Select lower-fat and leaner varieties of dairy products, meat, and poultry, such as skim milk, lean beef, and skinless, grilled chicken breast, to help you reduce the amount of saturated fats you consume. Your health may suffer if you consume too many foods high in saturated fats. Pick lean meats such as fish, poultry, and turkey. Use tofu, lentils, dried beans, and peas. One to three egg yolks per week is all that should be consumed. Choose loin or round cuts when consuming red meat, and aim to keep your weekly intake to no more than three servings.

What causes too much saturated fat?

Because saturated fat tends to increase blood levels of low-density lipoprotein (LDL) cholesterol. Your risk of heart disease and stroke can increase if you have high cholesterol levels. Red meat and dairy items naturally contain saturated fat. Additionally, it can be found in fried and baked items.

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The complete question is:

What is the least effective way to lower your saturated fat intake?

a. Eat baked chips rather than fried chips.

b. Eat ice cream instead of sherbet.

c. Prepare rice without butter.

d. Use wine, lemon juice, or broth instead of butter.

e. Eat nuts instead of French fries.

QuestionThe ability of an organism to respond to stimuli is called .AsensitivityBsensibilityCmovement

Answers

The ability of an organism to respond to stimuli is called sensitivity. Sensitivity is the ability of an organism or a system to detect and respond to changes in its environment or internal conditions.

This can include a wide range of stimuli, such as light, sound, touch, temperature, chemicals, and other environmental factors. Sensitivity is a key characteristic of living organisms, allowing them to adapt and respond to changing conditions in their environment. Sensibility, on the other hand, refers to the capacity for emotional or intellectual response, rather than the ability to respond to physical stimuli. Movement, while related to sensitivity and often a response to stimuli, refers specifically to the physical act of moving or changing position. The ability of an organism to respond to stimuli is called sensitivity. Sensitivity is the ability of an organism or a system to detect and respond to changes in its environment or internal conditions. This can include a wide range of stimuli, such as light, sound, touch, temperature, chemicals, and other environmental factors. Sensitivity is a key characteristic of living organisms, allowing them to adapt and respond to changing conditions in their environment. Sensibility, on the other hand, refers to the capacity for emotional or intellectual response, rather than the ability to respond to physical stimuli. Movement, while related to sensitivity and often a response to stimuli, refers specifically to the physical act of moving or changing position.

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What role do lichens and moss play in primary succession?

Answers

As generations of the lichens die, their dead remains gets decompose and are added in the soil.

In general , Primary succession is considered as the places in the community that is never occupied. Hence , Pioneer communities also help in the enrichment of the soil. When the  generations of the mosses or lichens die, their dead remains gets decompose and gets added to the soil. This soil then become enriched and can support variety of plant life.

Also , the Lichens are known as the pioneer community as they are the first to colonize bare rocks, mountains, and cliffs. They also helps in corrosion of rocks and accumulation of a important minerals and organic matter.

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A DNA molecule with 24%24% guanine would have how much adenine?

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In DNA, the percentages of guanine (G) and cytosine (C) bases are always equal, and similarly, the percentages of adenine (A) and thymine (T) bases are also always equal. This is due to the complementary base pairing rules in DNA, where G always pairs with C, and A always pairs with T.

Therefore, if a DNA molecule has 24% guanine (G), it must also have 24% cytosine (C), making the total percentage of guanine and cytosine 48% (24% + 24%). Since the percentages of A and T bases are also always equal, the total percentage of adenine and thymine must also be 48%. Therefore, the percentage of adenine (A) in the DNA molecule is also 24% (48% / 2). To calculate the actual number of adenine bases in the DNA molecule, we would need to know the total number of bases in the molecule. We can use the percentage values to estimate the relative proportions of the different bases, but the actual numbers will depend on the size of the DNA molecule.

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if our intent is to classify members of the kingdom animalia, which statement below best describes characteristics of members of kingdom animalia? question 5 options: all animals are multicellular and eukaryotic. all animals can reproduce sexually. all animals are heterotrophic and digest food inside their bodies. all of the choices are correct

Answers

Members of the kingdom Animalia are multicellular, heterotrophic organisms that obtain their energy from ingesting other organisms or organic matter.

What is heterotrophic ?

Heterotrophic organisms are organisms that need to obtain organic nutrients from their environment, such as plants or animals, in order to survive. Unlike autotrophs, which are capable of producing their own food, heterotrophs must feed on other living or dead organisms. Heterotrophic organisms can be further divided into two groups: holozoic and saprophytic. Holozoic heterotrophs are animals like humans and other mammals that must feed on organic material in order to survive. Saprophytic heterotrophs, such as fungi and bacteria, feed on organic material that has already been broken down by other organisms or by chemical processes. Heterotrophic organisms are vital for the health of an ecosystem because they break down organic material and release essential nutrients back into the environment.

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if you are performing this test on an unknown organism, why is it a good idea to run simultaneous tests on known phenylalanine-positive and phenylalanine-negative organisms?

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Running simultaneous tests on known phenylalanine-positive and phenylalanine-negative organisms allows for a comparison between the unknown organism and the known organisms.

This can help to ensure the accuracy and reliability of the test, as it provides a standard for comparison. Additionally, the comparison can help to determine whether any factors, such as the incubation time or temperature, may have affected the results. If you are performing a phenylalanine deaminase test on an unknown organism, it is a good idea to run simultaneous tests on known phenylalanine-positive and phenylalanine-negative organisms as a control or reference for comparison.

A positive result for the phenylalanine deaminase test is indicated by the presence of a green color due to the production of phenylpyruvic acid. A negative result is indicated by the absence of a color change, indicating that phenylalanine was not deaminated by the organism.

Running a control alongside the test also helps to rule out any false positives or false negatives that may occur due to contamination, errors in the testing procedure, or other factors. This is important for ensuring the accuracy of the results and avoiding incorrect identification of the unknown organism.

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What did Gregor Mendel control in his experiments with pea plants?

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Gregor Mendel control in his experiments with pea plants is the traits of the pea plants.

Gregor Mendel chose to study pea plants because they have easily identifiable traits, such as height, seed shape, and flower color. He controlled these traits by cross-pollinating the plants and carefully tracking the inheritance of these traits through several generations.

For example, Mendel would cross-pollinate a tall pea plant with a short pea plant, and then observe the traits of the offspring. He would then cross-pollinate the offspring with each other, and continue to track the inheritance of the height trait through several generations.

Through his experiments, Mendel was able to identify the principles of inheritance, including the concepts of dominant and recessive traits, and the law of segregation. His work laid the foundation for the field of genetics and our understanding of how traits are passed down from one generation to the next.

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What would happen if the inside solution of a cell is isotonic as well as the solution outside of it?

Answers

When a red blood cell is placed in an isotonic solution, there will be no net movement of water. Both the concentration of solute and water are equal both intracellularly and extracellularly; therefore, there will be no net movement of water towards the solution or the cell.

Which substances leave the blood by diffusing directly through the plasma membrane of endothelial cells?
-Carbon dioxide
-Steroid hormones
-Oxygen

Answers

Carbon dioxide, Oxygen and Steroid hormones leave the blood by diffusing directly through the plasma membrane of endothelial cells.

We now move on to tissues generated from mesoderm, which is a precursor to ectoderm and endoderm in the embryo. Between the ectoderm and endoderm, this layer of cells in the center develops and diversifies to perform a variety of supportive tasks. The body's connective tissues, blood cells, and blood vessels are all derived from it, along with muscle, kidney, and a wide variety of other organs and cell types. Blood vessels are where we start.

Blood is essential for the survival of nearly all tissues, and the blood vessels' linings, or endothelial cells, are what allow for the blood supply. Endothelial cells are incredibly flexible and can change their size and configuration to meet local needs.

By expanding through cell migration into practically every area of the body, they build a flexible life-support system. It would be impossible for tissues to develop or mend if endothelial cells weren't extending and remodelling the blood vessel network. An increase in interest in endothelial cell biology has resulted from the fact that cancerous tissue is just as reliant on a blood supply as normal tissue.

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which type of cell receives information from the external world and conveys this information to the brain?

Answers

Sensory neurons are the type of cell that receives information from the external world and conveys this information to the brain.

Sensory neurons, also called afferent neurons, are specialized cells that transmit sensory information from sensory receptors in the body to the central nervous system, which includes the brain and spinal cord. They are responsible for detecting different types of stimuli, such as light, sound, touch, temperature, and chemicals, and converting them into electrical signals that can be processed by the nervous system. Sensory neurons are found in various parts of the body, including the skin, eyes, ears, nose, and tongue, and brain they play a critical role in our ability to perceive and interact with the environment.

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Part A: Over time in polluted areas, what will LIKELY happen to the population of peppered moths?

A: stay the same
B: become darker in color
C: become lighter in color
D: become extinct

Part B: Based on your response for Part A, what caused the change in the peppered moths' population?

A: random chance
B: natural selection
C: genetic engineering
D: meiosis

Answers

Part A: It is LIKELY that the population of peppered moths in polluted areas will become darker in color over time.

Part B: The change in the peppered moths' population is most likely caused by natural selection.

What is natural selection?

Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce more successfully than other organisms. This can lead to the accumulation of advantageous traits in a population over time and ultimately to the evolution of new species. Natural selection occurs as a result of differences in the survival and reproduction rates of individuals due to variation in their inherited characteristics.

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How do cells regulate the expression of genes?

a) with stop and start codons

b) by secreting unnecessary proteins

c) with transcription factors

d) by winding or unwinding chromosomes

Answers

Cells regulate the expression of genes with transcription factors.

What are Transcription factors?

Proteins called transcription factors are involved in the process of turning DNA into RNA, or transcribed DNA. A large variety of proteins—aside from RNA polymerase—called transcription factors start and control how genes are transcribed.

One distinguishing characteristic of transcription factors is the presence of DNA-binding domains that enable them to bind to particular DNA regions known as enhancer or promoter sequences.

Some transcription factors contribute to the formation of the transcription initiation complex by binding to a DNA promoter sequence close to the transcription start site.

Therefore, Cells regulate the expression of genes with transcription factors.

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Which substances leave the blood by diffusing directly through the plasma membrane of endothelial cells? a. Оxigenb. Sterold hormones c. Carbon dioxide d. Electrolytes Large e. Proteins f. Glucose

Answers

Carbon dioxide, Oxygen and Steroid hormones leave the blood by diffusing directly through the plasma membrane of endothelial cells.

We now move on to tissues generated from mesoderm, which is a precursor to ectoderm and endoderm in the embryo. Between the ectoderm and endoderm, this layer of cells in the center develops and diversifies to perform a variety of supportive tasks. The body's connective tissues, blood cells, and blood vessels are all derived from it, along with muscle, kidney, and a wide variety of other organs and cell types. Blood vessels are where we start.

Blood is essential for the survival of nearly all tissues, and the blood vessels' linings, or endothelial cells, are what allow for the blood supply. Endothelial cells are incredibly flexible and can change their size and configuration to meet local needs. By expanding through cell migration into practically every area of the body, they build a flexible life-support system. It would be impossible for tissues to develop or mend if endothelial cells weren't extending and remodelling the blood vessel network. An increase in interest in endothelial cell biology has resulted from the fact that cancerous tissue is just as reliant on a blood supply as normal tissue.

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which of the following is an example of a carbohydrate? multiple choice question. glycogen dna vitamins cholesterol

Answers

Glycogen is an example of a carbohydrate.

The majority of consumers are at least somewhat familiar with the macromolecules known as carbohydrates. Some people follow "low-carb" diets in order to reduce weight. In contrast, athletes frequently "carb-load" before significant tournaments to make sure they have enough energy to compete at a high level. Granules, fruits, and vegetables are all natural sources of carbs, which are in reality an important component of our diet. The body uses carbohydrates for energy, notably the simple sugar glucose. Additionally, in people, animals, and plants, carbohydrates serve additional critical purposes.

(CH2O)n, where n is the number of carbon atoms in the molecule, is a representation of carbohydrates. In other words, in the molecules of carbohydrates, the proportion of carbon, hydrogen, and oxygen equals 1:2:1. Three subtypes of carbohydrates—monosaccharides, disaccharides, and polysaccharides—are recognized in the literature.

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Top layer Middle layer Bottom layer Drag the labels to identify the components of whole blood after centrifugation. View Available Hint(s) Reset Help Plasma Top layer Middle layer Bottom layer Buffy coat Erythrocytes Leukocytes Hematocrit Platelets

Answers

Plasma in the top stratum. Buffy cloak, in the middle ,Erythrocytes in the bottom stratum

Red blood cells (RBC), white blood cells (WBC), and platelets are the four main components of blood. The blood divides into three different parts after initial centrifugation: plasma, buffy coat, and erythrocytes. After initial centrifugation, the upper layer is referred to as the plasma and is made up of proteins, water, and clotting factors. Plasma makes up about 55% of the overall blood volume. The buffy coat, which makes up about 1% of the overall volume, is the middle layer. It is a thin coating of platelets and leukocytes (WBC). Erythrocytes serve as a representation of the centrifugation tube's lower half. It almost equals 45%.

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in the sense of alternation of generations, how many generations are included in a mature pine seed?

Answers

In the sense of alternation of generations, there are two generations included in a mature pine seed: the sporophyte generation and the gametophyte generation.

The sporophyte generation is the dominant phase in the life cycle of the pine seed, and is characterized by the presence of a multicellular, spore-producing structure, such as a cone or a seed. This structure contains the mature sporophytes, which produce the male or female gametophytes through meiosis.

The gametophyte generation, in turn, is characterized by the presence of tiny, single-celled structures called gametes, which are specialized for reproduction. These gametes eventually give rise to the next generation of sporophytes.

The alternation of generations is a fundamental aspect of the life cycle of many plants, including pines, and is crucial for their survival and reproduction. The presence of two generations, each with distinct characteristics and functions, allows for efficient production and dispersal of offspring, ensuring the continuation of the species over time.

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A reaction is said to be ___________________ when the addition of free energy from the environment is required for the reaction to proceed.

Answers

A reaction is said to be endergonic when the addition of free energy from the environment is required for the reaction to proceed.

DefinitionAny response that needs free energy to continue is considered to be endergonic. Photosynthesis is a biologically significant endergonic reaction. The reduction of carbon dioxide to glucose and the oxidation of water to oxygen are both fueled by solar photons, which are used by photosynthetic organisms to carry out this reaction.The entire energy change in the system is known as the enthalpy (H), and this total energy change in the system is used to calculate G: G=H-TS. To calculate G, subtract the energy lost to entropy (S) from the total energy change in the system. The G for an energonic reaction will be positive because they demand an energy input.

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Which characteristic was not necessary in order for plants to colonize land?A. Vascular tissue for moving water throughout the plant
B. a waxy cuticle to reduce water loss
C. the ability to screen ultraviolet light
D. the development of thick spore walls to protect the spore from dehydration
E. development of embryos protected inside other tissues

Answers

C. the ability to screen ultraviolet light was not necessary in order for plants to colonize land.

Although it is undoubtedly beneficial for shielding the plant from damaging UV rays, it is not necessary for a successful colonization. More crucial for plants to survive in a terrestrial environment were other adaptations including vascular tissue for transporting water throughout the plant, a waxy cuticle to prevent water loss, and the development of strong spore walls to guard the spore from dehydration. To colonize the land the plant need system to acquire water and nutrient given by roots, and way to reduce water losses, also prevention against high intensity sunlight.

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In pine trees, pollen grains get to the ovule via the _____. a) eggs b) integument c) megaspore d) pollen cone e) micropyle.

Answers

Pollen grains enter the ovule via the micropyle in pine trees. A small opening in the ovule's integuments through which sperm can enter the ovum.

The micropyle is a small opening in the ovule near the hilum that is retained in the seed after fertilization. Seeds absorb water primarily through the micropyle when soaked. Micropyle also assists in respiration and gas exchange. Five carpels, or sometimes fewer, fuse to form an ovary with the same number of chambers. Each chamber contains one to two pendulous anatropous ovules connected to the central column with the raphe facing the placenta and the micropyle pointing outward.

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Solve this(the best answer and explanation gets brainliest) at the instant , the athlete is running with a constant speed of 2 m/s. determine the angular velocity at which the camera must turn in order to follow the motion. PLEASE HELP ME WITH THIS ASSIGNMENT ILL MARK BLAINLIESTThe Folly* of Youth ASSIGNMENT*Folly: lack of good sense; foolishness.It is not unusual that adults parents, teachers, and otherknow-it-alls claim that the dreams of children and youth arefolly, just so much foolishness. But that hardly everprevents a child or youth from dreaming.In the following quotation, Jon Krakauer concludes two chaptersin his book, Into the Wild, with a confession of a young manafter having pursued folly.Read this quotation and consider its meaning.Then, after reading/listening to the two chapters (14 and 15), each entitled The Stikine Ice Cap, respond to the following quotation from Chapter 15 of Into the Wild with 2 paragraphs of your own writing; five or more sentences each. It is easy, when you are young, to believe that what you desire is no less than what you deserve, to assume that if you want something badly enough, it is your God-given right to have it. When I decided to go to Alaska that April, like Chris McCandless, I was a raw youth who mistook passion for insight and acted according to an obscure, gap-ridden logic. I thought climbing the Devils Thumb would fix all that was wrong with my life. In the end, of course, it changed almost nothing. But I came to appreciate that mountains make poor receptacles for dreams. And I lived to tell my tale. (155)In your writing, consider the point of view of a young Jon Krakauer, when he went on this foolish mountain climbing adventure, and the point of view of a mature Jon Krakauer, as he is writing his book. What is he saying about himself and Chris McCandless? Which city was the first to integrate its school systems? Scientific questions have certain qualities in common. Choose the descriptions that apply to all scientific questions. Check all that apply. a long jumper's take-off velocity is 14.6 m/s at an angle of 18o from the horizontal. her center of mass is 1 m above the ground at take-off and is 0.2 m above the ground at landing. neglect air resistance, find what is her take-off horizontal velocity (in m/s). operators have an order of precedence. arithmetic operators have a higher priority than comparison operators. group of answer choices true During the nitrogen cycle, through which structure are nitrogen compounds first absorbed into the plant?A. RootsB. LeavesC. FlowerD. Steam There are two types of vascular tissue within plants. where water and minerals are transported from the roots to the rest of the plant in ? while sugars are transported from one part of the plant to another in?. which statement below describes the use of lists in presentation programs? responses use bulleted lists but not numbered lists. use bulleted lists but not numbered lists. use numbered lists but not bulleted lists. use numbered lists but not bulleted lists. use numbered and bulleted lists. use numbered and bulleted lists. bullets can be turned off and on. bullets can be turned off and on. lists don't have to use numbers or bullets. lists don't have to use numbers , or, bullets. using the simple monthly calculator, what is the approximate total costs of an elastic beanstalk app in london? why is it logical to observe that wind-pollinated species usually grow in dense stands containing many individuals of the same species? why is it logical to observe that wind-pollinated species usually grow in dense stands containing many individuals of the same species? this increases genetic diversity in a population. wind-pollinated species maximize the chance that the pollen will be blown away from the individual. wind-pollinated species become able to withstand strong wind, which increases their fitness. wind-pollinated species maximize the chance that the wind will carry pollen from one individual to another. ou arrive at your first client meeting with Jaba's Smoothie Hut. Jaba's owner, Kim, has asked you to install a Wi-Fi network for his customers. Kim has told you that the store needs the following:Dedicated internet service with enough bandwidth to meet customer demand and run the storeBe cost effective (Kim does not want the most expensive or the cheapest)Customers will use Wi-Fi and the business will have 5 wired connectionsSelect the correct package for the Jaba's Smoothie Hut:20 Mbps service with 1 modem/Router, a 16 port switch, and 1 wireless access point100 Mbps service with 1 Modem/Router, a 24 port switch, 3 wireless access points (1 for office, 1 for retail, and 1 for outside) the following transactions apply to pecan co. for year 1, its first year of operations: received $100,000 cash in exchange for issuance of common stock. secured a $300,000 five-year installment loan from state bank. the interest rate is 5 percent and annual payments are $69,292. purchased land for $100,000. provided services for $260,000. paid other operating expenses of $150,000. paid the annual payment on the loan. required organize the transaction data in accounts under an accounting equation. prepare an income statement and balance sheet for year 1. what is the interest expense for year 2? year 3? What is the significance of Soraya feeling the need to tell the truth about her past? What does it say about the double-standard they discuss in this chapter? What does this say about her character vs. Amir? (6-8 well-developed sentences to respond). a preschool aged child's use of himself a s a reference point to understand his environment is: group of answer choices animism egocentrism representational thinking centration (25 points, answer fast)What is the purpose of the third paragraph in the passage? A. to suggest that Neptune is similar to Earth in terms of weather patterns B. to demonstrate how scientists were able to conclude that Neptune has clouds like Earth C. to introduce the idea that Neptune is similar to other planets in the galaxy D. to prove how scientists were able to confirm that Neptune has recurring weather how did the united states acquire the land that lewis and clark explored? common lit: why do kids bully How does the author use the final paragraph of the text to refine her idea Discuss three ways in which building and sustaining good relationship may impact positive on your emotional wellbeing during lockdown