Answer:The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.
Explanation:
Amino acids aka the building blocks of protein
I think the correct answer from the choices listed above is the first option. The true statement would be that all the populations in an ecosystem form the community. A<span> </span>community<span> or biocoenosis is an assemblage or association of </span>populations<span> of two or more different species occupying the same geographical area and in a particular time.</span>