Students are investigating the distribution of dandelions using quadrats. The students could during their investigation is they can do the pH test and the effect if it is happening or not.
<h3>What is pH?</h3>
pH is the measurement of the acidity or alkalinity of a substance. PH is a scale that marks from 0 to 12. The substance above 7 is acidic and the substance that is basic comes after 7. 7 is the number for neutral, which is pure water. The pH test is very easy to conduct.
To be sure that pH of the soil will not affect the distribution of dandelions. They first test the pH of the soil.
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Answer: a) substrate and cofactors b) covalent modification
Explanation:
Metabolic pathways involve all the chemical processes takes place in the enviornment or in an organisms.The metabolic pathways are controlled through the catalytic activities of enzymes.
The availability of enzyme is regulated by substrate and cofactors present in enzyme and enzyme activity is commonly regulated via covalent modification.
Enzymes are highly selective in nature and bind to a specific substarte only. The active site in enzyme binds with the substrate to form enzyme substrate complex. Coactors assist the enzyme activity, without cofactor enzyme can not perform its activity.
Hence enzyme availibility is regulated by substrate and cofactors regulates.
Covalent modifications regulates activity of enzyme as it involves addition and removal of chemical group to synthesis required protein. It can change the chemical properties of the site by targeting one or multiple amino acid.
Thus the correct answer is a) substrate and cofactors b) covalent modification
Answer:
It is important for scientists to study other planets because <u>it helps them learn more about Earth's history.</u>
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Explanation:
In the expanse of the space-time continuum of the universe there are many celestial bodies from stars to planets that all formed at different times hence have different ages and are at different stages of formation.
Studying other planets helps reveal alot about our own planet, its history and its formation. By observing younger earth-like planets, scientists could understand how the earth looked like in its younger years and how it was formed.
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Answer:
A solid rock becomes soil when it breaks down and combines with water, air, and organic matter. The correct answer would be #3
Explanation:
The Dependant Variable is the one responding to change.
Control Variables are controlled by you, and you influence the Independent Variables.
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