The answer is C ; Refinement
<span>energy change occurring in the atom?
</span>
Answer: It is A
Explanation: C and D are jokes/ complete lies. B is wrong because Darwin did observe that animals and plants adapted (evolved) to suit their environments.
Life form that should eat or burn-through different creatures to get energy and supplements. Investigation of how living creatures connect with one another and with their current circumstance. The entirety of the living things and non-living things cooperating in a similar region. Natural or ecological territory where a specific animal categories reside.
A cell membrane is semi permeable. It has no other function