The answer is genetic drift.
Muscles are elongated cells, sizes from a couple of millimetres to about 10 centimetres in length and from 10 to 100 micrometres in width. They are joined together in tissues that may be either striated or smooth. Striated muscles are classified even further. They belong to either skeletal or cardiac muscle. Striated muscle is typically subject to conscious control, while smooth muscle is not.
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Answer:
controlled experiments
Explanation:
Experiments in which all variables are identical except for one are called controlled experiments. This where an observer tests his hypothesis by looking on changes that were brought about by one variable. The results are always dependent on one adjusted variable.
Answer:
without amino acids you're body will break down in a way
Explanation:
well, amino acids of proteins help build structure and regulate the body's tissues and organs.