Evolution has been tested many times. In science, the word "theory" has a distinct meaning than it has in normal language. A broad explanation that is widely accepted in science is a theory that is backed up by a lot of data.
A scientific theory has a very strong possibility of being the accurate explanation for natural phenomena since it is so extensively supported. It may explain a variety of observations and pieces of evidence since it is a wide explanation. In other words, it can assist link and explain a variety of natural occurrences. The law of parsimony typically serves as a guide for the development of scientific theories. Parsimony is another word for thriftiness. According to the law of parsimony, you should pick the hypothesis with the fewest assumptions when deciding between competing hypotheses. In other words, the simpler explanation has a higher chance of being accurate. Like the fact that Earth and the other planets in our solar system orbit the sun, which you surely already know. However, it was once thought that Earth was at the center of the solar system and that the other planets revolved around it. Although this idea can be used to explain how planets travel, the explanation is very complicated.Learn more about the scientific theory with the help of the given link:
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A school’s cafeteria kitchen has a large, walk-in refrigerator where food is stored for lunch later in the week. Which cell organelle has a function that is similar to the refrigerator?.
Vacoule has a function that is similar to the refrigerator
What is Vacoule ?A membrane-bound cell organelle known as a vacuole. Animal cells typically have tiny vacuoles that aid in the sequestration of waste. Vacuoles in plant cells aid in preserving the equilibrium of water. A single vacuole may occasionally occupy the majority of a plant cell's inner volume.
Maintaining cell acidity and turgor pressure, controlling the storage and movement of substances, regulating the transport and localization of crucial proteins via the endocytic and lysosomal-vacuolar transport pathways, and responding to biotic and abiotic stresses are among the primary roles of vacuoles.Learn more about Vacoule here:
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suppose you have a sample of a material that has a mass of 340.2 g and a volume of 30.0 mL what is the density of the material
Answer:
you have to divide the mass and the volume, thanks!
Explanation:
I need help on my homework.
Considering the case of the gray and albino mice;
the probability of getting gray offspring is 75%the probability of getting albino offspring is 25%the possible genotypes among the offspring are GG, Gg, and ggthe possible phenotypes among the offspring are gray and albinothe probability of getting heterozygous offspring is 50%the probability of getting homozygous offspring is 50% the genotype of the female is Gg since it is gray and its father is albino.What is genotype of an organism?Genotype refers the sum of the alleles or variant forms of a gene, that an organism possesses.
The genotype of an organism may either be heterozygous of homozygous for a particular trait.
Considering the case of the gray and albino mice; albino mice have a homozygous recessive allele while gray mice may have hom0zygous or heterozygous allelic pairs.
Let the two allele be G and g.
GG genotype = gray phenotype
Gg genotype = gray phenotype
gg genotype = albino phenotype
The father of the gray female mice is albino, hence its genotype is Gg
The male mice is heterozygous, hence its genotype is Gg.
The offspring of the cross is given below:
Gg x Gg = GG, Gg Gg, ggthe probability of getting gray offspring = 3/4 or 75%
the probability of getting albino offspring = 1/4 or 25%
the possible genotypes among the offspring are 3; GG, Gg, and gg
the possible phenotypes among the offspring are 2; gray and albino
the probability of getting heterozygous offspring is 2/4 or 50%
the probability of getting homozygous offspring is 2/4 or 50%
the genotype of the female is Gg since its father is albino and it is gray.
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A specialized protein in saliva breaks up starch molecules in food into smaller chains of simple sugars. In this reaction, which molecule is the enzyme, which is the substrate, and which is the product? one of the four answer choices will not be used.
A specialized protein in saliva breaks up starch molecules in food into smaller chains of simple sugars. In this reaction, the specialized protein is the enzyme, the starch molecules are the substrate and the small chains of simple sugars are the product.
In the field of science, we describe enzymes are biological catalysts that speed up reactions by lowering the activation energy. All enzymes are proteins hence the specialized protein in saliva that breaks starch molecules into simple sugars is an enzyme.
The substrate is the molecule that fits into the active side of the enzyme and forms the products. The reactants are the substances on which enzymes work. In the case above, starch is the compound that is broken down by enzymes hence it is the substrate.
The products are the substances formed after the catalytic activity has been performed by the enzyme on the substrate. In the case above, the small chains of simple sugars are the product.
Although a part of your question is missing, you might be referring to this question:
A specialized protein in saliva breaks up starch molecules in food into smaller chains of simple sugars. In this reaction, which molecule is the enzyme, which is the substrate, and which is the product? One of the four answer choices will not be used.
-the specialized protein
-the small chains of simple sugars
-the starch molecules
-the saliva
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A reproductively isolated population or group capable of interbreeding to produce fertile offspring is a:_________
A reproductively isolated population or group capable of interbreeding to produce fertile offspring is a species.
In the field of ecology, species can simply be described as organisms that can interbreed to produce fertile offspring. In the taxonomic classification system, the category of species comes below the category of the genus.
Organisms of a species, living together at the same time, in the same place are referred to as a population. The population of a species in an area depends on the biotic and abiotic factors of an area. If the conditions of an area are suitable, then a species will be more adaptable and hence reproduce in a greater number in such an area.
For example, a camel species is more adapted to live in a desert rather than a grassy area.
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This is a muscle with four head
a. biceps brachii
b. quadriceps femoris
c. pronator teres
d. triceps brachii
(b) quadriceps femoris is the right response. This is a muscle with four heads.
In the front of the thigh, there is a collection of muscles known as the quadriceps femoris. The vastus lateralis, vastus medialis, vastus intermedius, and rectus femoris are the four distinct muscles that make up the quadriceps, which in Latin means "four headed."
The femur bone serves as the origin of each vastus muscle, which attaches to the patella, or kneecap. The rectus femoris, which also connects to the kneecap, partially encloses the three vastus muscles. The rectus femoris, in contrast to the vastus muscles, enters into the hip bone.
The femoral nerve (and its following branches) innervates the muscle group, which is supplied with oxygenated blood by the lateral femoral circumflex artery and its branches.
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What was Earth's early atmosphere like before cyanobacteria?
Answer:
Oxygen-free
Explanation:
Before about 2.4 billion years ago, Earth was a virtually oxygen-free environment. The appearance of cyanobacteria, or blue-green algae, changed all that. Cyanobacteria injected the atmosphere with oxygen, setting the scene for the development of complex life as we know it.
The polarity of water is partly responsible for the movement of water molecules through fine tubes such as those in wood and other plant parts. this is called ______.
The apparent shrinking of cell c indicates the reaction of the cell to what
The apparent shrinking of cell C indicates the reaction of the cell to Hire solute concentration outside the cell than inside.
The shrinking of cell is due to the hypertonic solution.
Whenever the cell is placed in the hypertonic solution, the cell will shrink due to movement of water molecules outside the cell.
Hypertonic Solution- A solution that has a lower osmotic pressure than the solution it is compared to is said to be hypotonic. It may also refer to a solution that has less solute in it when compared to another solution that is spread across a semipermeable barrier.
The given question is incomplete, find below the complete question,
Q. Shira observes that the shape of cell A appears normal, while cell B appears swollen and cell C is shrunken. The apparent shrinking of cell C indicates the reaction of the cell to what?
a. an anaerobic environment outside the cell
b. lower solute concentration outside the cell than inside
c. More oxygen inside the cell then what can be utilized
d. Hire solute concentration outside the cell than inside
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what are the seeds of tomatoes usually called
Answer:two Types of seeds:
hybrid and heirloom seeds
Explanation:
ANSWER ASAP
Frank wants to determine how the type of container, that holds a liquid, affects the evaporation rate of the liquid. Which of the following describes the best type of scientific investigation for finding the answer to this question?
Group of answer choices
An experiment in which the shape the container is made of is changed, but all other variables are kept the same.
An experiment that varies the temperature of the liquid, but keeps all other variables the same.
Observations of how long it takes rainwater, that forms puddles in various outdoor locations, to evaporate.
Observations in which measurements are taken of the water level in the same cup after evaporation has occurred.
An experiment in which the shape the container is made of is changed, but all other variables are kept the same is best type of scientific investigation for finding evaporation rate.
It is implied by the term "surface phenomena" that evaporation only takes place at the liquid's surface. In order to separate from the liquid and enter the atmosphere as a gas during evaporation, the liquid's surface-located molecules must overcome the forces of attraction between molecules.
The impact of evaporative cooling on permeable pavements depends in large part on the evaporation rate. It is influenced by an intricate web of variables, including size, structure, moisture content, air void content, relative humidity, water temperature, and temperature of the air.
The best kind of scientific experiment for determining evaporation rate is one in which the material the container is constructed of is changed but all other factors are left constant.
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How is carrying capacity related to an ecosystem's limiting factors?
Carrying capacity is related to an ecosystem's limiting factors because the same limiting variables may be present in many habitats and may have an impact on the populations of both plant and animal species. Finally, the carrying capacity of the habitat—the largest population it can sustain—is determined by limiting variables.
Carrying capacity is the largest population that an ecosystem can sustain. It is determined by limiting variables. The environment is a limiting element that lowers population levels. Limiting variables determine the number of species that can coexist in an ecosystem. Food, oxygen, water, and space are all limiting constraints. Temperature and precipitation in an ecosystem are influenced by its climate, which has an impact on the species that can survive there.
Only an overpopulated area can support an ecology. Carry power is also impacted by the presence of decomposers. In an ecosystem, a species' population will grow until its carrying capacity is reached. The population size then remains constant. The carrying capacity alters when abiotic or biotic factors change. It may also change as a result of the loss of resources and people.
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Write a statement about each of the classification of matter
The three states of matter are solids, liquids, and gases.
Solids have strong intermolecular forces keeping the molecules together in a definite shape.Liquids have weak intermolecular forces between the molecules.Gases have negligible intermolecular forces between the molecules.What is matter?Matter is defined as anything that has mass and occupies space.
Matter is the material from which the universe is made.
Matter exists in three main physical states which have different properties.
The different states of matter can also be interconverted between each other.
The three states of matter are:
SolidLiquidsGasesSolids are forms of matter which have definite shape and volume.
Solids have strong intermolecular forces keeping the molecules together in a definite shape.
Liquids are forms of matter which have no definite shape but have definite volumes.
Liquids have weak intermolecular forces between the molecules.
Gases are forms of matter which have no definite shape nor definite volumes.
Gases have negligible intermolecular forces between the molecules.
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Enzymes are specialized chemicals that enable chemical reactions to proceed using a minimal amount of energy.
true
false
Answer:Your answer is true
Explanation:
Once the viral dna of a retrovirus is stably integrated into the host cell genome, it is referred to as a(n):______.
a. enveloped virus
b. nonenveloped virus
c. provirus
d. oncovirus
Integration of the viral DNA effects in the endless insertion of the viral genome into the host chromosomal DNA is referred to as a provirus in the case of retroviruses or prophage in the subject of prokaryotic viruses.
What do host cells do?A live cell that houses and provides sustenance for an alien creature is called a host cell. Two organisms are considered to be in a symbiotic relationship when they coexist and have a tight, sustained biological interaction. A virus can literally take over the functions of its host when it comes into touch with a host cell and implant its genetic material. Instead of its regular output, an infected cell generates more viral protein and genetic material. an organism or cell that has contracted a virus or another kind of microbe. A virus is a tiny, contagious particle that can only multiply when it infects a host cell. In essence, viruses reprogram the host cell to become a virus factory as they "commandeer" it and use its resources to produce other viruses. Viruses are not regarded as living things because they are unable to replicate on their own (without a host).
Therefore the correct answer is c. provirus
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________ epithelium provides a moist and slippery surface and is well suited to resist stress, as seen in the __________
Nonkeratinized epithelium provides a moist and slippery surface and is well suited to resist stress, as seen in the vagina.
What is non-keratinized tissue?This squamous epithelium is stratified and contains keratin protein. It is an unproteinated stratified squamous epithelium. What use does non-keratinized compound epithelium serve?A mucous membrane, which acts as an extra protective and lubricating layer of the epithelium, is typically present on non-keratinized epithelium. It can be found in some areas of the vagina, ureters, vaginal wall, pharynx, esophagus, and external female genitalia.What distinguishes keratinized epithelium from nonkeratinized epithelium?The main distinction between keratinized and nonkeratinized epithelium is that the latter is permeable to water while the former is impenetrable to it. Additionally, keratinized epithelium is a more effective barrier than nonkeratinized epithelium.
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When maintaining homeostasis, negative feedback loops are more common in the human body than positive feedback loops
A. True
B. False
Answer:
The answer might be True
Explanation:
Plant species make glucose molecules in a process called __________________. They then use these molecules as a source of energy.
A. Carbon Dioxide
B. Photosynthesis
C. Chemical Energy
D. Protein Synthesis
Answer:
Photosynthesis!
Explanation:
This is the process by which plants use sunlight, water, and carbon dioxide in order to create oxygen and energy in the form of sugar.
When a big fish swims into an oncoming smaller fish and swallows it, the momentum of the two-fish system _______.
When a large fish swims into and swallows a smaller fish, this same momentum of something like the two-fish system is increased. Nothing has changed.
What is meant by Momentum?Momentum is defined as the product of a particle's mass and velocity. Momentum is an vector quantity, meaning means that it has both a magnitude and a direction.. According to Isaac Newton's second equation of motion, the time rate at which the momentum changes equals the force applied on the particle. Look up Newton's laws of motion.
What is the significance of momentum?Momentum in Physics is significant because that describes the link between speed, mass, and direction. It also describes overall force required to stop and keep items moving. If an object seems to have enough momentum, it really can exert considerable force.
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According to eastwick & finkel, ________ competitors evoke more jealousy in both men and women than do homely rivals.
Men and women are more likely to feel jealous of attractive rivals than of unattractive ones.
Paul Eastwick's study focuses on the psychological processes that enable romantic partners to establish and maintain committed and connected relationships.
We know that men regard a woman's physical attractiveness because it is tied to her fertility, but women value a man's dominance because it is related to his capacity to offer resources.
In a vignette-based study, it was discovered that women were more sensitive to a rival's appearance than men were, but males were more sensitive to the rival's superiority. This is because when a rival exhibits qualities that are seen to be significant to the other sex, jealousy is triggered.
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What is the difference between u.s. customary and metric?
In osseous tissue, the narrow channels connecting neighboring lacunae are called.
In osseous tissue, the narrow channels connecting neighboring lacunae are called canaliculi.
Osseous tissue is a form of tissue, right?tissue that supports and binds bones together. Bone is composed of cancellous tissue and compact tissue (the tough outer layer) (the spongy, inner layer that contains red marrow). Osteoblasts, which build bone, and osteoclasts, which break down bone, keep osseous tissue in good condition.
Osseous tissue provides the strength and structure to bone . Bone is made up of compact tissue and cancellous tissue . Oessous tissue is maintained by bone forming called oestooestolastlast .
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What is the effect of temperature on the rate of plant respiration?
Answer:
heat speeds the movements of particles which speed up the reactions, so kinetic energy is higher. It means reactions speed up and rate of cellular respiration increases. but also cellular respiration needs enzymes so if the temperature is to high it will denature and respiration can't happen
Protein structure is usually not affected by changes in the temperature, ph, or ionic concentration of the surrounding solution.
a. true
b. false
The protein structure is affected by changes in temperature, pH, and ionic concentration of the surrounding solution. Hence, the answer is False.
The protein structure gets highly modified when exposed to changes in pH, temp, etc. as these changes affect the bonding forces present between the linear protein structure forming its 3D state and thus it gets deformed.
The internal relationships between the protein's amino acids will modification if it's exposed to chemicals, changes in temperature, pH, or the other environmental factors. this might modify the protein's kind.
The protein's form could alter to the purpose wherever it becomes dysfunctional, within which case the macromolecule is alleged to be changed, even whereas the organic compound sequence, usually called the protein's core structure, doesn't modification.
Only at extraordinarily low pH scale levels will enzyme, the catalyst that digests macromolecule within the abdomen, work. The conformation of enzyme, or however its peptide chain is rolled-up in 3 dimensions, starts to change with increasing pHs. to ensure that enzyme continues to digest macromolecule and doesn't denature, the abdomen maintains a very low pH scale.
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You are researching a population of moles. In the course of your research, you identify a nearby population that occasionally comes into contact with your study population. What best describes the evolutionary process at work?.
Gene flow best describes the evolutionary process at work.
Gene migration is another name for gene movement. The transfer of genetic material from one group to another is referred to as gene flow. Through migration, gene flow can occur between two populations of the same species and is mediated via vertical gene transmission from parent to offspring and reproduction. The transfer of genes from one group to another is known as gene flow or gene migration. The interbreeding of Homo sapiens with Neanderthals in Europe, which produced Neanderthal genes in contemporary Europeans, is an illustration of gene flow. Pollination is an example of gene flow in plants. Gene flow, also known as gene migration, is the transfer of genetic material from one population of a species to another by interbreeding, modifying the species' gene pool.learn more about Gene flow here: https://brainly.com/question/2698940
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Can you identify blood vessels coursing through the stratified squamous epithelium in either slide?.
Yes, we can identify blood vessels coursing through the stratified squamous epithelium in slide.
The lining of the blood vessel is formed by simple squamous epithelium, which is single-layer flattened cells that line the interior of vessels has a special name , endothelium
Histologically, blood vessels consist of concentric layers or "tunics" of different types of tissue .
The tunica intima is the innermost layer, consisting of endothelium and a relatively thin layer of supporting connective tissue. The tunica media is the middle muscular and/or elastic layer, containing smooth muscle and elastic tissue .The tunica adventitia is the outermost , fibrous connective tissue layer.Epithelial tissues do not contain any blood vessel and are avascular. Connective tissues are highly vascular and so the nearby connective tissue provides essential nutrients (from the blood) to the epithelial tissue.
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What kind of vegetation would you most likely expect to find in the chaparral biome? a. deciduous trees b. tall grasses c. hardy shrubs d. tall pine trees please select the best answer from the choices provided a b c d
What are the current biological models for the origins of biological macromolecules?
Biological models for the origins of biological macromolecules
1. abiotic synthesis of small organic molecules
2. joining of these molecules into macromolecules
3. packaging of these molecules into protobionts
4. self replication
Macromolecules promote structural integrity, serve as a reservoir for stored energy, have the capacity to store and retrieve genetic data, and can speed up metabolic processes. Proteins, carbohydrates, nucleic acids, and lipids are the four main categories of macromolecules that perform these crucial roles in a cell's life.Large non-polymeric molecules like lipids, nanogels, and macrocycles, as well as biopolymers (proteins, carbohydrates, and nucleic acids), are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, macromolecules can also be found in research materials like carbon nanotubes.To know more about macromolecules visit:
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Answer:
Macromolecules promote structural integrity, serve as a reservoir for stored energy, have the capacity to store and retrieve genetic data, and can speed up metabolic processes. Proteins, carbohydrates, nucleic acids, and lipids are the four main categories of macromolecules that perform these crucial roles in a cell's life.
Large non-polymeric molecules like lipids, nanogels, and macrocycles, as well as biopolymers (proteins, carbohydrates, and nucleic acids), are the most prevalent macromolecules in biochemistry. In addition to synthetic fibers, macromolecules can also be found in research materials like carbon nanotubes.
Explanation:
Could someone help me out with this question please?
The available hydrogen bond donors and acceptors of guanine and cytosine pair with one another in space to form a nitrogenous base pair.
Define guanine.One of the four nucleotide bases in DNA, along with adenine (A), cytosine (C), and thymine, is guanine (G) (T). Guanine nucleotides on one strand pair with cytosine bases on the other strand in a double-stranded DNA molecule. Information in DNA is encoded by the four nucleotide bases' order.
Define cytosine.Along with adenine, guanine, and thymine, cytosine is one of the four nucleobases that can be found in DNA and RNA. It is a pyrimidine derivative with two attached substituents and a heterocyclic aromatic ring. Cytidine is the nucleoside of cytosine. It creates three hydrogen bonds with guanine during the Watson-Crick base pairing process.
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Anthropologists occasionally apply their work to real-world problems but most of the time they conduct academic research directed at their academic peers. True or false?.
The correct answer for this question is True.
The term "anthropology" literally means "the science of humanity." Many disciplines, from anatomists to historians to psychologists, could claim the same lofty title. However, there is something about the anthropological study of "everything human" that distinguishes anthropologists and, in my opinion, gives us the primary right to the phrase "we study people."
Applied anthropology is the application of the discipline to address academic research and facilitate change. This is also known as anthropological practice. Academic peers, on the other hand, is primarily concerned with teaching the subject of anthropology and contributing to the field's overall knowledge base.
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