An athlete who excels at short sprints most likely has more fast glycolytic muscle fibers as compared to a marathoner.
<h3>What are glycolytic muscle fibers?</h3>
The glycolytic muscle fibers are muscle fibers that form a portion of tissue where ATP, the energy coin for the cells, is produced via anaerobic respiration by a cellular process called glycolysis (the first step of cellular respiration).
Anaerobic respiration is different from cellular respiration because produces energy in a faster mode but it is less efficient.
In conclusion, an athlete who excels at short sprints most likely has more fast glycolytic muscle fibers as compared to a marathoner.
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Variation is any difference in organisms of the same species, whereas gradualism is a microevolutionary theory.
<h3>What is a scientific theory?</h3>
A scientific theory is a given explanation on a phenomenon from the real world (e.g., the evolution theory).
The fossil record is a piece of evidence for the evolution theory (which is mainly based on natural selection).
In conclusion, variation is any difference in organisms of the same species, whereas gradualism is a microevolutionary theory.
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The most common is called--uterine atony.
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Although very similar, the base pairs in DNA and RNA differ by one nitrogenous base.
In DNA, the four nitrogenous bases are Adenine, Thymine, Guanine, and Cytosine. Adenine always bonds to thymine (in DNA), they are connected by two Hydrogen bonds. Cytosine and Guanine are always bonded together. They are connected by three Hydrogen bonds.
However, in RNA, there is no thymine and instead, there is Uracil. That is the only nitrogenous base that is different. Cytosine still bonds to guanine, and adenine bonds to uracil.
I hope that helps!
