Variation in rates of cell division is regulated by a cell-cycle control system—a group of molecules, mostly proteins, within a cell that coordinates the events of the cell cycle. This control system functions through a system of checkpoints. Which assessment occurs at the G2/M checkpoint?

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Answer 1
Answer:

Answer:

See the answer below

Explanation:

At the G2 checkpoint, the accuracy of chromosome replication is assessed along with the cell size and proteins within the cell. The cell division will only proceed if all the listed conditions appear all right.

At the M checkpoint, the correct attachment of spindles to the kinetochores of the sister chromatids of each chromosome is assessed. This is to ensure that chromosomes are correctly separated to the opposite poles of the cell.


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Answers

In the levels of organization  in living things Shown Below X is the C). System . In the levels of organization in living things, "system" falls within the "organism" level.

The levels of organization in living organisms are typically described as follows, from the simplest to the most complex:

Subatomic Particles: These are the smallest units of matter, including protons, neutrons, and electrons, which form atoms.

Atoms: Atoms are the basic building blocks of matter and combine to form molecules.

Molecules: Molecules are groups of atoms bonded together. Examples include water (H2O) and glucose (C6H12O6).

Cells: Cells are the fundamental units of life and are the smallest independently functioning entities. They can be prokaryotic (lacking a nucleus) or eukaryotic (with a nucleus).

Tissues: Tissues are groups of similar cells that perform a specific function. Multiple types of tissues make up organs.

Organs: Organs are composed of different tissues working together to perform a specific function. For example, the heart is an organ.

Organ Systems: Organ systems are groups of organs that work together to carry out more complex functions within an organism. Examples include the circulatory system, digestive system, and nervous system.

Organism: The organism level represents the entire living being, whether it's a single-celled organism or a complex multicellular organism like a human.

So, "system" is a level of organization within the broader level of "organism."

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Answer:

C

Explanation:

system / organ system

Is the importance of an element in the body related to its percentage of body weight? Cite the evidence in the table to support your explanation.

Answers

Yes, the importance of an element in the body related to its percentage of body weight.

That element that is present in a large amount are more important for the structure and function of the body. The human body is approximately 99% consist of six elements which is Oxygen, hydrogen, nitrogen, carbon, calcium, and phosphorus.

The five elements are present in 0.85% on the basis of boy weight which is sulfur, potassium, sodium, chlorine, and magnesium so we can conclude that percentage of element in the body tells us about its importance.

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Final answer:

The importance of an element in the body is not solely based on its percentage of body weight. Elements' importance is determined by their function and essentiality to biological processes. Oxygen, although abundant in the body, is necessary for cellular respiration and energy production.

Explanation:

The importance of an element in the body is not directly related to its percentage of body weight. While some elements may have a higher percentage in the body, their importance is determined by their function and essentiality to biological processes.

For example, oxygen is the most abundant element in the body and has a high percentage of body weight. This is because oxygen is essential for cellular respiration and energy production.

On the other hand, elements like iodine and iron may have a lower percentage in the body, but they are crucial for functions like thyroid hormone synthesis and oxygen transportation, respectively.

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Which of the following is a radical? O H OH H2O

Answers

Answer;

OH-

Explanation;

  • Radicals are molecules that contains at least one unpaired electron. They are formed when a single covalent bond breaks to leave an unpaired electron on each of the two species created by the breaking of the bond.
  • The answer for the question is OH, OH is an example of a radical, other common examples NH4+, NO3-, etc.
  • O, and H, are atoms. An atom is the smallest particle of an element that can take part in a chemical reaction.
  • H2O, is a molecules, A molecules is a substances made of two or more atoms. It is the smallest particle of a chemical element or a compound that has chemical propertie of an element or a compound.
If a radical is defined as a molecule with unpaired electrons,then the answer is OH.However,if you take the more general definition(an atom or molecule with unpaired electrons),then OH,O and H are all radicals.

The two main types of chemical bonds and what they form

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