Answer: definetly A, food webs
Explanation:
the other options are not even related to organisms
Answer:
I would say B
Explanation:
Because atural selection is the mechanism for how evolution occurs over time. Basically, natural selection says that individuals within a population of a species that have favorable adaptations for their environment will live long enough to reproduce and pass down those desirable traits to their offspring.
Neurons and neurotransmitters didn’t see first answer please make Brainlyist have a good day