Scar tissue is made of a protein called collagen
Answer:
T tubules
Explanation:
Transverse tubules (T tubules) are extensions of the sarcolemma that penetrate into the interior of the muscle transmitting electrical signals to the sarcoplasmic reticulum.
The fourth one that looks like an M. This is because it describes changes in population genetics in which extreme values for a trait are favored over intermediate values. In this case, the variance of the trait increases and the population is divided into two distinct groups.
The definition is the study of life
Answer: "symbiosis" ; or, a "symbiotic relationship" .
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