Answer:
The branch-like structures on the heads of neurons that receive signals from other neurons are called <u>dendrites</u>.
Explanation:
Dendrites are the branched extensions that leave the body of a neuron and by which it receives nerve impulses from other neurons through synapses. Dendrites allow the transmission and uptake of different substances known as neurotransmitters, which are the basis of the biochemical mechanism that allows the transmission of signals.
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.
Learn more about the glycolytic muscle fibers here:
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Answer:
The answer to this question is false
<span>Sunset, this is really similar to the question about molecular clocks you asked. The more closely related the three species are, the more similar the homologous proteins will be in each of the species.
Defining 'sequence similarity' is a little bit nuanced. It can refer either to the genetic code or the amino acid code. Because the genetic code is degenerate multiple codons code for the same amino acid - mutations in the gene don't result in mutations in the proteins when the mutated codon codes for the same amino acid as the unmutated codon.
Similarly, you can sort of think of some amino acids as being redundant. In some cases, replacement of one amino acid with another doesn't result in all that much change to the protein's structure or function. The result is, as species diverge and mutations build up, they build up preferentially in certain domains of the protein and more frequently involve replacement of one amino acid with one which is pretty much similar to it.</span>
