if a cell keeps growing why must it eventually divide

Answer:

The major function of DNA is to encode the sequence of amino acid residues in proteins, using the genetic code.

Explanation:

A in Biology class last year.

DNA is the genetic material of many organisms. The primary function of DNA is to store the genetic information that results in protein synthesis.

DNA or deoxyribonucleic acid is the nucleic acid that includes the instruction and the information that codes for protein synthesis. It is a crucial part of hereditary that passes the genetic traits from one generation to another.

The major role that it plays in an organism is to store the genetic code and information so that it can be used to synthesize proteins through the process of transcription and translation.

Therefore, DNA stores genetic information.

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Answer:

Plantets/Stars, Solar System, Galaxy, Universe

Explanation:

Answer:

Planet stars

solar system

Galaxy

Universe

Explanation:

Answer:

protons and electrons

Answer:

protons and neutrons

Explanation:

Answer:

The relaxed form of DNA that can be found in the nucleus is referred to as chromatin. This form of DNA is observed when the cell is not dividing.

Explanation:

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The relaxed form of DNA in a cell's nucleus is called chromatin.

Therefore, it can be said that the relaxed or uncondensed form of DNA in the nucleus of a cell is called chromatin.

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Answer: A. Chromosomes are duplicated.

Explanation: This is the correct answer on the quiz.

Chromosomes are duplicated in S phase. Therefore, option (A) is correct.

What do you mean by S phase?

Between G1 phase and G2 phase, DNA replication takes place during S phase of the cell cycle. The processes that take place during S-phase are tightly controlled and highly conserved.

The cell replicates its genetic material entirely during the S phase of DNA synthesis; At the end of S phase, a normal diploid somatic cell with a DNA complement of 2N acquires a DNA complement of 4N.

DNA synthesis or replication occurs during the S phase of the cell cycle, which occurs prior to the interphase. Before entering mitosis or meiosis, the cell's genetic material is replicated in this manner, leaving enough DNA for daughter cells to divide.

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The development of adaptive traits is a result of natural selection, one of the main mechanisms underlying evolutionary change.

Understanding natural selection is also becoming more and more important in real-world settings, such as resource management, agriculture, and medicine. Even among people with postsecondary physical education, studies show that natural selection is generally very poorly understood.

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It is possible to cause the presynaptic terminal of an axon to release its transmitter without an action potential. This can be done by direct application of a neurotransmitter agonist or a receptor agonist.

A neurotransmitter agonist mimics the action of the neurotransmitter, activating postsynaptic receptors on the postsynaptic terminal, which triggers the release of neurotransmitters in the presynaptic terminal. A receptor agonist binds to the specific receptors found on the presynaptic neuron, causing the release of neurotransmitter without an action potential.

This type of release is known as “non-canonical neurotransmission”. In addition, application of certain types of electrical stimuli, such as current directly applied to the presynaptic neuron, can also induce neurotransmitter release without an action potential. This is known as “non-electrogenic neurotransmission”.

Non-canonical and non-electrogenic neurotransmission are two mechanisms that can be used to cause a presynaptic neuron to release its transmitter without the need for an action potential.

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The statement describes an ecosystem, which is a dynamic community of living organisms (plants, animals, microorganisms) interacting with each other and with the nonliving components (such as water, air, and soil) of their environment.

Ecosystems can vary in size, from small ponds or gardens to large forests or oceans, and they play important roles in regulating various biogeochemical cycles, such as the carbon and nitrogen cycles, and supporting biodiversity.

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The middle coat of the eye that includes the choroid, ciliary body, and iris is the uvea.

The uvea, also known as the uveal tract, is the middle coat of the eye. It is composed of three structures: the choroid, ciliary body, and iris.

The choroid provides blood supply to the retina and absorbs excess light, while the ciliary body produces aqueous humor and controls the shape of the lens for focusing.

The iris, on the other hand, regulates the amount of light that enters the eye by changing the size of the pupil. The uvea plays an important role in the overall function of the eye and its disorders can lead to various ocular diseases.

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The organism that would have the greatest amount of energy stored is the protozoa.

The organisms at the bottom of the food web (producers) typically have the greatest energy input, as they are the primary source of energy in the ecosystem. They capture the energy from the sun and convert it into organic compounds.

They may not have the greatest biomass or individual energy content compared to higher trophic levels.

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Answer:

Reuptake

Explanation:

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The relationship between the Great Chain of Being and the process component of Lamarck's theory of evolution is that both concepts attempt to explain the organization and development of living organisms.

The great chain of being is a hierarchical concept that dates back to ancient Greek philosophy and was later adopted by Christian theology. It proposed that all living things could be arranged in a hierarchical order from the simplest forms of life to the most complex, with humans at the top. This idea was influential in shaping the worldview of many people, including scientists like Lamarck.

Lamarck's theory of evolution included a process component that suggested that organisms could acquire new traits during their lifetime and pass them on to their offspring. This process was known as "use and disuse" and "inheritance of acquired characteristics." According to Lamarck, an organism that used a certain body part extensively would develop that part more fully, while a body part that was not used would eventually diminish in size.

The relationship between the great chain of being and Lamarck's theory of evolution is that Lamarck's theory was influenced by the hierarchical worldview of the great chain of being. Lamarck believed that organisms could evolve and move up the chain by acquiring new traits, rather than being placed there by a divine power. However, his theory was later discredited by the discovery of genetic inheritance, which showed that acquired traits could not be passed on to offspring.

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The level of gene expression control that allows a cell to conserve the most resources is transcriptional control. Option C is correct.

Transcriptional control refers to the regulation of gene expression at the stage of transcription, where the DNA is transcribed into RNA. This level of control occurs before RNA processing, translation, and post-translational modifications take place. By regulating gene expression at the transcriptional level, the cell can prevent the unnecessary synthesis of RNA and subsequent translation of proteins that are not needed.

By conserving resources at the transcriptional level, the cell can avoid the expenditure of energy and resources required for RNA processing, splicing, translation, and post-translational modifications. It allows the cell to selectively transcribe and produce specific RNAs and proteins based on its current needs and environmental conditions.

In contrast, post-translational control, pre-RNA splicing control, and translational control occur at later stages of gene expression and may involve additional energy and resources for processing, modifying, and degrading RNA and proteins.

Hence, C. is the correct option.

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--The given question is incomplete, the complete question is

"Which of the following levels of gene expression control allows a cell to conserve the most resources? A) post-translational control B) pre-RNA splicing control C) transcriptional control D) translational control."--

Answer:

1. Glucose And Oxygen.

2. Transpiration is the process by which water is lost in the form of water vapour by evaporation from the surface of leaves and other serial parts of plant .

3. A. Cooling Effect : The water keeps on evaporating from the leaf surface during transpiration . The heat required for evaporation of water is obtained from the plant itself and thus, the plant cools itself when it is hot outside.

B. Transpiration Pull : As water evaporates from the leaf surface, the roots pull up more water from the soil to make up for the water loss during transpiration .As a result, important mineral salts are also brought along with the water. These salts are necessary for the growth of the plant .

4. Leaf Tendrils : Sweet Pea

Spines : Cactus

Scale Leaves : Onion

5. Pitcher Plant, Venus FlyTrap, Blodderwort

6. Normally plants propogate with the help of seeds contained in the fruits . But some new plants may also be produced from other part of the plant such as the roots, stems, and leaves . This type of reproduction is called vegetative propogation .

E.g. = Bryophyllum .

Explanation:

The key hormone regulator of the postabsorptive state is glucagon. During the postabsorptive state, the liver is the principal site of glucose production. Glucagon stimulates the liver to increase glucose production through glycogenolysis and gluconeogenesis, increasing the release of glucose into the bloodstream.

The postabsorptive state, also known as the fasting state, is a metabolic state that occurs after digestion and absorption of nutrients from the last meal have been completed. In this state, the body relies on energy stores, such as glycogen and fats, to meet energy demands. The key hormone regulator of the postabsorptive state is glucagon, which is released by alpha cells in the pancreas when blood glucose levels are low.

During the postabsorptive state, the liver is the primary site of glucose production. Glucagon stimulates the liver to increase glucose production through glycogenolysis, which is the breakdown of glycogen into glucose, and gluconeogenesis, which is the production of glucose from non-carbohydrate sources like amino acids and fatty acids. The glucose produced by the liver is released into the bloodstream, where it can be used by other tissues to meet their energy needs. In addition to increasing glucose production, glucagon also promotes fat breakdown and the release of fatty acids into the bloodstream for energy production.

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It is rod shaped bacteria

What are rods, bacilli, and cocci?

Although bacteria can take on a wide range of shapes, the most often researched species tend to be either spherical (named cocci, singular coccus), or cylindrical (called rods or bacilli) (singular bacillus). Rods and cocci are actually the extremes of a spectrum.

Similar to the streamlined body of a fish, a boat, or an airplane, a rod-shaped cell has a body that would be ideal for swimming. The frictional resistance will be larger for a spherical body. The majority of the flagellated motile bacteria are rod-shaped, which lends support to this concept. It contains a large number of rod-shaped bacteria, including Shigella, Citrobacter, Salmonella, Klebsiella, and Escherichia coli.

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The monosaccharide that is most important as an energy source for the body is glucose.

Glucose is the most significant monosaccharide for living things. In all living things, from bacteria to people, it is the primary source of chemical energy utilized for cell operations.

By photosynthesis, plants and specific microbes may produce glucose. Humans and other organisms cannot create glucose on their own; they must obtain it from food.

Every cell in the body receives glucose through the bloodstream after it is swiftly absorbed from the intestines. Cellular respiration, a process within the cell, breaks down glucose. This process generates energy, which is then used to fuel all of the cell's processes and ultimately all aspects of life.

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Explanation:

Answer:

B.  Layers that cut across the most other features are youngest.

Explanation:

Using the principles of cross-cutting relationships, you can determine the relative age of rocks found in the ground. The idea behind it is that the geologic feature which cuts another is the younger of the two features, and it had been around for 400 years. It's not very precise but it is good for determining relative age.

Answer:

Armadillo

Explanation:

Answer:

meiosis provides for variation in egg in sperm cell produced by an organism

Explanation:

meiosis is like mitosis for sex cells and it makes 4 individual cells at the end

Answer:

If you are trying to measure the distance between 2 points on a piece of paper, multiple methods work well. There are three main types of horizontal or linear distance measurement. Direct Method. Optical Method.

Explanation:

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CRISPR-Cas9 is a genetic modification technique that edits parts of the genome of an organism. Using this technique, scientists can add, remove or modify sections of the DNA sequence.

The CRISPR-Cas9 system is used to edit the genome. Cas9, a protein found in the bacteria, is an enzyme that acts like molecular scissors by cutting the DNA at a specific location. The system relies on RNA molecules called guide RNAs to direct the Cas9 protein to the correct location in the genome.Content loaded refers to the process of loading data to be displayed on a webpage. Therefore, it is not relevant to CRISPR-Cas9 as a genetic modification technique.

The content you provided describes the CRISPR-Cas9 technique, which is a method used for genetic modification. It allows scientists to make changes to the genome of an organism by editing specific parts of its DNA sequence. With CRISPR-Cas9, scientists can add new genetic material, remove existing genetic material, or modify the sequence of genetic material in a targeted and precise manner. This technique has revolutionized genetic research and has the potential to be used in various fields, including medicine, agriculture, and biotechnology.

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CRISPR-Cas9 is a genetic modification technique that edits parts of the genome of an organism. Using this technique, it is true that scientists can add, remove, or modify sections of the DNA sequence.

CRISPR-Cas9 is a revolutionary genetic modification technique that allows researchers to alter an organism's DNA in a more precise and efficient manner. It is made up of two components: CRISPR, which refers to a series of DNA repeats, and Cas9, which is an enzyme that cuts DNA. The CRISPR system functions as a type of "molecular scissors" that can target specific DNA sequences and make precise cuts in the genome. Once the cuts are made, scientists can then add, remove, or modify specific sections of the DNA sequence using a variety of methods. These modifications can be used for a variety of purposes, including the study of genetic diseases and the creation of new medicines and therapies.CRISPR-Cas9 has the potential to revolutionize the field of genetics by enabling scientists to edit DNA with unprecedented precision. It is still a relatively new technology, however, and much research is needed to fully understand its potential and limitations.

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