Answer:
A
Explanation:
The Himalayas is formed by two plates collide each other
Their purpose is reproduction.
Answer:
the answer is the object cannot create energy
Explanation:
i just got it right on my quick check
The cutting down of trees
Answer:
<u>Once the myosin-binding sites are exposed, and if sufficient ATP is present, myosin binds to actin to begin cross-bridge cycling. Then the sarcomere shortens and the muscle contracts. In the absence of calcium, this binding does not occur, so the presence of free calcium is an important regulator of muscle contraction.</u>
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