Answer:
they are a renuable resource where as coal and oil take many many years to have again
Explanation:
Effect 1 - A
Effect 2 - A
Effect 3 - C (maybe B)
Effect 4 - B
Answer:
b. the contractile unit between two Z discs
Explanation:
A sarcomere is the functional and mechanical unit of striated muscle structure, is formed of thin filaments (two strands of actin and one strand of regulatory protein) and thick filaments (myosin). <em>They have the ability to contract in unison coordinating the muscles’ contractions. As you can see in the image added these units are located between Z discs. </em>
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