in some oceans, large underwater mountains exist. corals inhabit some areas of these underwater mountains…

in some oceans, large underwater mountains exist. corals inhabit some areas of these underwater mountains but not others. scientists studied the effect of the presence of corals on the types of other organisms in these habitats. to do this, they collected water samples from areas with corals and areas without corals and compared the organisms found in each sample. how does this method of sampling help determine the effect of the presence of corals on the types of other organisms?\na by comparing the populations of organisms found in the samples from the two areas\nb by comparing the lifespans of the organisms found in the samples from the two areas\nc by comparing the average size of the organisms found in the samples from the two areas\nd by comparing the average mass of the organisms found in the samples from the two areas

in some oceans, large underwater mountains exist. corals inhabit some areas of these underwater mountains but not others. scientists studied the effect of the presence of corals on the types of other organisms in these habitats. to do this, they collected water samples from areas with corals and areas without corals and compared the organisms found in each sample. how does this method of sampling help determine the effect of the presence of corals on the types of other organisms?\na by comparing the populations of organisms found in the samples from the two areas\nb by comparing the lifespans of the organisms found in the samples from the two areas\nc by comparing the average size of the organisms found in the samples from the two areas\nd by comparing the average mass of the organisms found in the samples from the two areas

Answer

Brief Explanations:

The goal is to determine the effect of coral presence on other organisms. Comparing populations gives an idea of which organisms are present or absent depending on coral presence, which is relevant to the study's aim. Lifespans, average size, and average mass are not as directly related to determining the types of organisms affected by coral presence.

Answer:

A. by comparing the populations of organisms found in the samples from the two areas