Two individuals have different traits. One individual has dimples, and the other does not. What is the best explanation for these phenotypes

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

the awnser is d i think

gag reflex, poor dentition, gum retraction

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