Why do you think a scientist studying this whale and it’s surroundings would need to understand the structure of atoms?

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.

equal distribution i think.

the correct answer is:

a population changes in response to a change in the environment.