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:
The correct answer is A.) however C.) is cellular respiration or the function of the mitochondria. D.) is describing chloroplasts B.) is something concerning DNA and proteins synthesis
Explanation:
ADP is composed of 2 phosphate groups bonded to 5 carbon atoms of ribose
glucose or sugar backbone attached to Adenine.
The answer is B.