Charles Darwin is known as father of evolution.
because of his contribution in biology. he also give the theory of natural selection which is great boon in studying how variation happen.
The electrochemical impulse is composed of an action potential travelling from the dendrite to the cell body to the axon of the neuron. The main neurotransmitter is acetylcholine which is released at either the synapse or the neuromuscular junction.
I think your answer should be A.
The best and most correct answer among the choices provided by your question is the third choice.
Atrophy occurs when a muscle becomes weaker and smaller from not being used
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1. replication
2. four genetically identical cells
