Write a letter to your parents explaining how you received your gene's. and try to explain to your parents why you look the way you do.

All you need to do is write adout why you look,sound and act the way you do.

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.