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Ahat [919]
2 years ago
7

Karen bought a birdbath made of concrete. The salesman suggested that she seal

Biology
1 answer:
Cerrena [4.2K]2 years ago
8 0

Answer:

Explanation:

If she doesn't the water will seep through the pores and the birds will get a bath only while the hose is on, in which case there is no reason for the birdbath.

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<h3>What is the smallest contractile unit within skeletal muscle?</h3>

A sarcomere comprises the segment between two consecutive Z lines and is the contractile unit of the muscle fiber, as it is the smallest portion of the muscle fiber capable of contraction and distension.

In this case, the distance between points 1 and 7 has the smallest structure of a skeletal muscle and corresponds to figure B.

See more about sarcomere at brainly.com/question/14005497

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