Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction. For example, if a population is exposed to a new disease, selection will act on genes for resistance to the disease if they exist in the population.
Photosynthesis takes place in chloroplasts.
Answer:
im,not for sure but I think it's B
Explanation:
Add the diagram to your question and I can probably get it for sure
Definitely decompose dead organisms, otherwise there would be no oil for us.
