The statement that BEST describes is It should include the amount of carbon lost to the atmosphere due to respiration by the trees.
By storing carbon in their annual new growth, trees lower the quantity of carbon in the atmosphere. A tree stores more carbon as it grows by keeping it in its accumulated tissue. The size and health of the trees affect how much carbon is annually stored. Urban trees that are open-grown and maintained typically have lower biomass than trees that grow naturally in wooded settings.
When a tree decays and dies, it releases a large amount of the carbon it has stored back into the atmosphere. Thus, the quantity of carbon that could be released if trees are allowed to wither and decay is sometimes referred to as carbon storage.
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In the somatic cell of a mammalian female, one of the two x chromosomes is randomly inactivated and condensed, resulting in the formation of a?.
The creation of a barr body is the result.
When one of each cell's two randomly inactive X chromosomes?One of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells early in the development of the female embryo. X-inactivation makes sure that females have one functional copy of the X chromosome in each body cell, just like males do.
How is the mammalian X chromosome rendered inactive?Mammals need to express the Xist gene, which maps to the X chromosome inactivation center (Xic) and encodes an untranslated RNA, in order to undergo X chromosomal inactivation. For female embryos, Xist RNA truncation by gene targeting is fatal and prevents the X chromosome containing the gene for deletion.
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Millennial climatic oscillations that occur over time periods of several thousand years or less are mainly attributed to,,,.
Millennial climatic oscillations that occur over time periods of several thousand years or less are mainly attributed to: d. Ice sheet instabilities and changes in thermohaline circulation patterns in oceans.
What is an ocean?An ocean can be defined as a body of salt water which covers approximately seventy percent (70%) of the Earth's surface. Additionally, about 97% of the Earth's water is comprised of ocean and as such it is considered as the most prominent and defined feature of the Earth.
What is a climatic oscillation?In Geography, a climatic oscillation can be defined as the naturally reoccurring changes in the climate of planet Earth that is typically associated with an interaction of atmospheric and oceanic conditions that occurs at different periods of time.
As a result of the ice sheet instabilities and changes in thermohaline circulation patterns in oceans, there have been changes in planet Earth's climate and these are generally referred to as millennial climatic oscillations.
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Complete Question:
Millennial climatic oscillations that occur over time periods of several thousand years or less are mainly attributed to,,,
a. Plate tectonics
b. Volcanic eruptions and asteroid impacts
c. Milankovitch cycles
d. Ice sheet instabilities and changes in thermohaline circulation patterns in oceans
which of the following statements is false? a) gametes are haploid cells. b) two haploid cells fuse during fertilization. c) an x chromosome is an autosome. d) a zygote is a fertilized egg
Answer:
C
Explanation:
An autosome is any chromosome that is not a sex chromosome(gonosome) and an X chromosome is a gonosome.
which of the following statement is not true about systematics? all homoplastic traits are due to convergent evolution. all derived traits are synapomorphies. all homoplasies are homologous traits. all synapomorphies are derived traits. all homologous traits are homoplasies.
all derived traits are synapomorphies. all homoplasies are homologous traits. these statements are not true about systematics.
What are homologous traits?Characteristics that can be passed down from parent to child are known as traits. In biology, the term "homologous" refers to a similarity in internal or chromosomal structures.
Therefore, homologous qualities are common characteristics among various but related species.
Examples of homologous structures include bat wings, mouse legs, human finger bones, crocodile legs, and other four-legged vertebrate legs. Another example would be the altered leaves of carnivorous plants, cacti, and poinsettias, as well as the skeletons of whales and hummingbirds.
Homologous chromosomal structures mean chromosomes that carry the same genetic material, even if the expression of the genetic material differs.
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Which trait evolved early in the development of land animals and helped animals overcome their dependency on water to reproduce?.
Answer:
Which trait evolved early in the development of land animals and helped animals overcome their dependency on water to reproduce?.
The amniotic egg
Which kingdom does a multicellular living organism most likely belong to?
A. Archaea
B. Bacteria
C. Eubacteria
D. Fungi
Answer:
Multicellular living organism most likely belong to kimgdom : d. fungi
Explanation:
Multicelluler organisms is An organism that consists of two or more cells. All the species of plants, animals, fungi, red algae, green algae, and brown algae are multicellular organisms.
Some neuroglial cells produce the components of the electrical insulator called ______.
Some neuroglial cells produce the components of the electrical insulator called Myelin.
What functions do neuroglial cells perform?A broad class of cells known as neuroglia assist neurons during their growth and metabolism. They are in charge of preserving immune protection and homeostatic regulation in the neurological system.
Glia are non-neuronal cells of the central nervous system (brain and spinal cord) and the peripheral nervous system that do not generate electrical impulses. They are also known as glial cells (gliocytes) or neuroglia.
Glial cells are non-excitable brain tissue cells that cushion, support, and insulate neurons. Neurons. excitable nerve cells are those that can transfer electrical signals and react.
Support cells, or neuroglial cells, work with neurons to help them survive and thrive in their ideal environments.
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The following account was written by a confused student. rewrite the paragraphs with the mistakes corrected.
"shortly after a heavy meal, glucose is absorbed from the large intestine, and its concentration in the blood cells goes up. this rise is detected by the liver, which releases the hormone insulin into the blood. insulin makes the pancreas remove the extra glucose from the blood and store it as starch.
Later on, the concentration of glucose in the blood drops. the liver breaks down fat so that it goes up again. (6 marks)
b) Explain why, sometime after the meal, the blood glucose concentration falls below its correct level. (2 marks)
(False answer will get reported)
After a heavy meal, glucose is absorbed from the small intestine into the blood, so the glucose level in the blood increases and is detected by the pancreas, which then secretes insulin. Insulin makes the liver absorb glucose and convert it into glycogen, and as needed, it will release glucose.
What is glycogen?
Glycogen is a storage form of carbohydrates present in the human body that is made up of glucose. The correct paragraph is written here. After a heavy meal, glucose is absorbed from the small intestine (materials get absorbed here), and its concentration in the blood cells goes up. This rise in glucose level is detected by the pancreas, which releases the hormone insulin (a hormone for glucose homeostasis) into the blood. Insulin makes the liver (which stores the glycogen) remove the extra glucose from the blood and store it as glycogen (a polymer of glucose).
Later on, the concentration of glucose in the blood drops (as glucose is stored in the liver). The liver degrades glycogen, causing glucose to rise again. After the meal, the free glucose is stored as glycogen, resulting in less free glucose in the blood.
Hence, the insulin, liver, and intestine all play important roles in this process.
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True or False: Changes in one component of one sphere can affect other spheres.
A. True
B. False
Answer:
True
Explanation:
Molecularly, a gene is an organized unit of blank______ sequences that can be transcribed into rna.
Molecularly, a gene is an organized unit of DNA sequences that can be transcribed into RNA.
DNA is Deoxyribonucleic Acid. It is the more prevalent and stable genetic material. It is a double stranded structure. The nucleotide bases present in DNA are adenine, guanine, cytosine and thymine. The DNA can be packed into more compact structure like the 30 nm chromatin fiber, chromosomes, etc.
RNA is Ribonucleic Acid. It is a highly reactive and unstable genetic material. It is usually single stranded. There are various types of RNA. However, they can be broadly classified into two categories: coding and non-coding. All nucleotide bases except thymine are present in RNA, instead uracil is present.
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Simple
Eukaryotes
Prokaryotes
or Both
All prokaryotes are unicellular while eukaryotes may be unicellular or multicellular.
Predominantly unicellular organisms of the bacterial and archaeal domains are called prokaryotes. These organisms consist of the smallest simplest and oldest cells prokaryotic cells. Organisms in the eukaryotic domain are composed of more complex eukaryotic cells. Eukaryotic cells are more complex than prokaryotic cells, DNA is linear and resides in the nucleus.
Eukaryotic cells have their own power plants called mitochondria. Eukaryotic cells are much more complex than prokaryotic cells. They are larger and have membrane-bound organelles such as nuclei, mitochondria, and chloroplasts. The human neurons shown below are eukaryotic cells. A cell or organism with a well-defined nucleus. Eukaryotic cells have a nuclear membrane that surrounds the nucleus.
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The organization of organisms has increased in complexity throughout time. In light of this trend, which of the following is true?
As organisms increase in complexity, the entropy in the surrounding universe correspondingly increases.
Each organism is considered a closed system, and therefore, increased organism complexity has no relationship to the laws of thermodynamics.
Organisms increase in complexity to maintain homeostasis with the decrease in entropy of the surrounding universe.
The increase in organism complexity is a function of evolution, not thermodynamics.
The increase in organism complexity is a function of evolution, not thermodynamics. Option D
How does organisms become more complex?If we look around the world today, we are going to see that the complexity of the organisms that we would encounter is quite startling. This is because of the gradual evolution of life over time.
Now we can see from the theory of evolution that organisms become more complex as a result of the process of evolution that enable the organism to develop features that enable them to survive better in their habitat.
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modern humans occupied cold-temperate environments before they were able to occupy australia. group of answer choices true false
True, modern humans occupied cold-temperate environments before they were able to occupy Australia.
What is environment?The natural environment or natural world includes all living and non-living things that occur in nature. In other words, it is not artificial in this case.The term is most commonly applied to the earth or parts of the earth.The environment can be defined as the totality of all biotic and abiotic factors and their influences that affect human life.All living or biotic elements are animals, plants, forests, fisheries and birds, while abiotic or abiotic elements include water, land, sunlight, rocks and air.For humans, the environment is our natural world, including the atmosphere, land, vegetation, seas, rivers, lakes, and so on. Simply put, the term refers to the entire physical environment of the earth.To learn more about environments from the given link :
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current species typically either have large beaks or small beaks. what type of process likely affected the initial population to yield the current species?
The initial population to yield the current species: natural selection.
What is natural selection theory?
The process through which populations of living things adapt and change is known as natural selection. A population's members are naturally varied, which means that they are all distinctive in some ways. This variety indicates that some people have characteristics that are more environment-appropriate than others.
Darwin referred to the process by which species diverge as "natural selection," which is brought about by the inheritance of traits, competition among individuals, and trait variation.
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An environmental agency worries that many cars may be violating clean air emissions standards. The agency hopes to check a sample of vehicles in order to estimate that percentage with a margin of error of % and % confidence. To gauge the size of the problem, the agency first picks cars and finds with faulty emissions systems. How many should be sampled for a full investigation?.
Answer:
братан йо так ма ши так ура
can oatey 1/2 in. x 21-2/3 ft. yellow gas line ptfe tape be used on gasoline connections?thread seal tape 1/2 in. x 21-2/3 ft. yellow gas line ptfe thread seal tape 1/2 in. x 21-2/3 ft. yellow gas line ptfe thread seal tape 1/2 in. x 21-2/3 ft. yellow gas line ptfe thread seal tape oatey 1/2 in. x 21-2/3 ft. yellow gas line ptfe thread seal tape
Yes. All Oatey thread seal tapes can be used on natural gas lines.
Chemically inert PTFE tape is gasoline and oil-resistant. Therefore, it is widely used for sealing and lubricating fuel line connections in automotive applications. Do not use PTFE tape when connecting female threaded PVC fittings or valves.
Using tape for socket connections creates wedges and puts a lot of stress on the connections during assembly. PTFE tape does not guarantee a leak-free connection. For Permatex gasoline, Aviation Foam A Gasket #3 is best as it is resistant to regular gasoline. Another product Permatex offers is a high-temperature thread sealant.
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______ is the cell division process that occurs in diploid germ cells and gives rise to haploid cells.
Meiosis is the cell division process that occurs in diploid germ cells and gives rise to haploid cells. This process is essential for sexual reproduction, as it is the basis for the creation of gametes.
Meiosis consists of two successive cell divisions, meiosis I and meiosis II, which result in the reduction of the chromosome number by half.
During meiosis I, the number of chromosomes is reduced from diploid to haploid. This occurs through a process of reciprocal exchange, or crossing over, between homologous chromosomes.
This process ensures that each resulting cell will receive a unique combination of chromosomes. Meiosis II is essentially a mitotic division, in which the haploid cells produced in meiosis I are divided into four equal parts.
The end result of meiosis is the creation of four haploid cells, each with half the number of chromosomes of the original cell. These cells go on to form gametes, which fuse during fertilization to create a new, diploid individual.
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a population of 5,000 mice has 400 dominant alleles and 3,600 recessive alleles. what is the frequency of dominant alleles in the population?
The frequency of dominant alleles in the population is 0.08.
The genetic code consists of ____ codons that specify amino acids, and ____ codons that do not specify amino acids.
Three codons in the genetic code do not recognize any amino acids, while 61 codons do.
How many amino acids are specified by the genetic code.
The three-letter structure of codons allows the four nucleotides found in mRNA—A, U, G, and C—to combine in a total of 64 different ways. The final three of these 64 codons are stop signals that indicate the end of protein synthesis, whereas the remaining 61 codons relate to amino acids.
Three of the 64 possible codons signify the end of a protein rather than coding for amino acids. The 20 amino acids that are used to make proteins are described by the 61 remaining codons. The AUG codon, which codes for methionine, is found at the start of the DNA.
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T-cells are a type of immune cell system that recognizes pathogens in the body.
True
False
The statement is true that T-cells are a type of immune cell system that recognizes pathogens in the body.
T-cells are the lymphocytes that are involved in providing acquired immunity to the body. They can recognize the pathogens presented by the antigen presenting cells. There are two types of t cells: helper T cells and Cytotoxic T cells.
Immune cells are the cells of the immune system that are involved in protecting the body from infection, allergies and foreign pathogens. There are several immune cells that perform several functions. The example of such cells are: phagocytes, lymphocytes, dendritic cells, etc.
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Identity the phase in the cell to the left
The phase in the cell to the left is anaphase.
The cell cycle is a series of events that occur within a cell as it grows and divides. Cells spend most of their time in what is called interphase, during which they grow, replicate chromosomes, and prepare for cell division. Cells then exit interphase, undergo mitosis, and complete division. The cell cycle is the name given to the process by which cells replicate to form two new cells.
The cell cycle consists of two main phases interphase and mitosis. During interphase cells grow and DNA replicates. During mitosis, the replicated DNA and cytoplasmic contents are separated and the cell divides. Mitosis or M phase is the period of actual nuclear and cell division during which the replicated chromosomes are split evenly between her two progeny cells.
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A human skin cell has 46 chromosomes and undergoes mitosis. How many chromosomes will be present in each daughter cells when mitosis is complete?.
23 chromosomes will be present in each daughter cells when mitosis is complete.
What are chromosomes?Chromosomes are filamentous structures found in the nuclei of animal and plant cells. Each chromosome is composed of a single molecule of protein and deoxyribonucleic acid (DNA). DNA is passed from parent to child and contains the specific instructions that make each type of organism unique.Chromosomes are thread-like structures made up of single molecules of protein and DNA that carry genomic information from cell to cell. In plants and animals (including humans), chromosomes are located within the cell nucleus. Chromosomes are made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.To learn more about chromosomes from the given link :
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The blank______ that constitute the genetic material provide a blueprint for the characteristics of every organism.
Genes or genetic material constitute the genetic material provide a blueprint for the characteristics of every organism.
The hereditary ingredient in a cell is genetic material. It contains all of an organism's unique information. DNA (deoxyribonucleic acid) or RNA are the two names for it (ribonucleic acid). DNA is found in the cytoplasm of prokaryotes like bacteria. Nuclear DNA and, to a lesser extent, extranuclear sites like the mitochondria (which contain mtDNA) and chloroplasts are both found in eukaryotes, which include plants and animals.
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the division of a species or subspecies into immunologic types based on the antibody reaction to cell wall, flagellum, or capsule antigens is known as
The division of a species or subspecies into immunologic types based on the antibody reaction to cell wall, flagellum, or capsule antigens is known as bacteria.
What are bacteria?
Bacteria are known as unicellular organisms and they perform a function of digesting nutrients and other important nutrients in order to run the living cycle as well as the ecosystem. Bacteria are considered as good decomposers and they generally decomposes the waste materials.
The decomposers are considered as the living thing that feeds on and breaks down plant and animal matter into simpler parts or substances. decomposer. The thin layer that has been formed the outer covering of the cell has been known as the cell membrane. It has been composed of the lipid bilayer which has a embedded proteins.
Therefore, The division of a species or subspecies into immunologic types based on the antibody reaction to cell wall, flagellum, or capsule antigens is known as bacteria.
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Suppose you discovered a mutation in sea urchins that caused them to produce eggs with an overly dense vitelline envelope. What would you expect to see if you combined these eggs with normal sperm?.
The new cell formed by the union of an egg and a sperm is known as a zygote.
What number of cells make up a zygote?A zygote (fertilized egg) is only one cell for the initial twelve hours following fertilization. It divides into two cells after around 30 hours. These two cells split into four cells around 15 hours later. The zygote will have 16 cells in it after three days. It is known as a morula at that moment.
How much time does a zygote need to grow into an embryo?A zygote becomes a blastocyst, which is a small ball of cells, and then develops into an embryo over the course of five to six days. The zygote divides and becomes two cells few hours after the sperm and egg combine.
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. Using the scientific process, how can we set up a controlled experiment to answer the question: “Does temperature of water affect the amount of copper sulfate water will dissolve?” Establish two different amounts of water, and test whether the same amount of copper sulfate will dissolve in each amount. All other variables should remain constant. Establish two different temperatures of water, and test how much copper sulfate will dissolve at each temperature. All other variables should remain constant. Establish distilled water and tap water, and test how much copper sulfate will dissolve in each water type. All other variables should remain constant. Establish two different amounts of copper sulfate, and test whether each will dissolve in the same amount of water. All other variables should remain constant.
Establish two different temperatures if water and test how much copper sulphate will dissolve at each temperature.
When water is heated, the molecules become more energetic and travel more quickly. They travel faster, making more frequent contact with the sugar, which accelerates its dissolution.Water is a polar solvent, which allows copper sulphate to dissolve in it. When the molecules that make up a solvent have an uneven distribution of charges within them, the solvent is said to be polar. The hydrogen atoms in water have a partial positive charge, while the oxygen atoms have a partial negative charge.A substance dissociates to form ions when it dissolves in water. A test for water is performed by observing how anhydrous copper(II) sulphate reacts with water. In the presence of water, the white solid changes colour to blue. Exothermic in nature, the reverse reaction involves energy transfer to the environment.CuSO₄ +H₂O→Cu²⁺ +SO²⁻
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Which enzymes cleave the bond between adjacent nucleotides at sequence-specific sites within a dna molecule?.
At sequence-specific locations in a DNA molecule, restriction endonucleases enzymes sever the connection between neighboring nucleotides.
As they cleave DNA at or close to particular recognition sequences known as restriction sites, restriction enzymes are also referred to as "molecular scissors." These enzymes, also known as restriction endonucleases, make one cut on each of the two strands of DNA.
One restriction enzyme that does this is SmaI, which produces DNA fragments with a flat or blunt end by cutting directly through the DNA strands. Similar to EcoRI, other restriction enzymes also cleave DNA strands at nucleotides that are not symmetrically opposite one another.
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of the following, which occurs during the calvin cycle? group of answer choices co2 light energy is converted to chemical energy. excited electrons are conveyed from chlorophyll to an electron acceptor. atp and nadph are synthesized.
The event that occurs during Calvin cycle is: (1) CO₂ is reduced.
Calvin cycle is the first reaction that takes place during light-independent reactions of photosynthesis. Here the environment CO₂ is captured and reduced to form the first 3 carbon product. This process occurs in three steps: carbon fixation, reduction, and regeneration.
Photosynthesis is the process of synthesizing the food for plant by capturing the inorganic raw materials like water, sunlight energy and carbon dioxide. This is converted into food in the form of sugar and by-product oxygen. There are two types of reactions involved: the light-dependent reaction and the light-independent reaction.
The given question is incomplete, the complete question is:
Of the following, which occurs during the Calvin cycle?
CO₂ is reduced. Light energy is converted to chemical energy. Excited electrons are conveyed from chlorophyll to an electron acceptor. ATP and NADPH are synthesized.To know more about Calvin cycle, here
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Which of the following best describes the composition of the bacterial translation initiation complex?
A. 30S and 50S subunits, mRNA start codon paired with the anticodon of fMet-tRNAfMet, fMet-tRNAfMet bound in the P site, A site is open, GTP is bound by IF-2
B. 30S and 50S subunits, mRNA start codon paired with the anticodon of fMet-tRNAfMet, fMet-tRNAfMet bound in the P site, A site is open
C. 30S and 50S subunits, mRNA start codon paired with the anticodon of fMet-tRNAfMet, fMet-tRNAfMet bound in the A site, P site is open
D. 30S and 50S subunits, mRNA start codon paired with the anticodon of fMet-tRNAfMet, fMet-tRNAfMet bound in the A site, P site is open, GTP is bound by IF-2
The one that best describes the composition of bacterial translation initiation complex is the 30S and 50S subunits, mRNA start codon paired with the anticodon of fMet-tRNAfMet, fMet-tRNAfMet bound in the P site, A site is open. Therefore, the correct answer is option B.
Translation initiation is a process in which tRNA ribosomal subunits are assembled by the eukaryotic initiation factors. In bacteria, translation initiation involves some components such as:
30S and 50S subunits as ribosomal subunits.mature mRNAtRNAGTP or guanosine triphosphate as an energy sourceIF1, IF2, and IF3 as prokaryotic initiation factors.The p site is the place where peptidyl tRNA forms in the ribosome, while the A site is a point of entry for the tRNA (which is why it's open).
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What is the name for pairs of chromosomes that are the same size and code for the same genes?.
Pairs of chromosomes that are the same size and code for the same genes are called as Homologous chromosomes.
Two DNA molecules called homologous chromosomes, one from each parent, carry the same genes in a diploid creature.To put it another way, both of your parents contribute the entire genome. The identical 23 chromosomes from each parent contain identical genes. In total, our cells have 46 chromosomes in two copies. However, each gene may have a distinct variant on each homologous chromosome. More variety is produced, the negative impacts of mutations are diminished, and populations are generally stabilized when each gene has two copies.During the development of gametes, a process called homologous recombination involves homologous chromosomes. Due to the interchange of homologous chromosome segments that occurs when homologous chromosomes are in close proximity, this process is sometimes referred to as "crossing over." The genes on the chromosomes are similar in length and size and share the same genetic material.To know more about Chromosomes check below link:
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