Answer:
For a contraction to occur there must first be a stimulation of the muscle in the form of an impulse (action potential) from a motor neuron (nerve that connects to muscle). Note that one motor neuron does not stimulate the entire muscle but only a number of muscle fibres within a muscle.
Explanation:
What is a pituitary gland
Answer:
A molecule is two or more atoms bonded together to form a single chemical entity.
I found this, I hope it helps some.
Together they take that energy out<span> of the sugar-related molecules. </span>Glucose<span> is combined with oxygen and releases usable energy, carbon dioxide, and water. ... ATP is the </span>power<span> molecule used by all the </span>cells<span> of an organism to </span>power<span> the secondary reactions that keep us alive.</span>
