12)Scientists study the biosphere to examine the relationship between biotic and abiotic factors that impact the entire planet and the hierarchy of life. What is defined as all of the members of a single species that live in a particular area?A)organismsB)ecosystemsC)populationsD)communities
This isn’t B, because it’s only one species. It isn’t C, because it is one population, and A doesn’t make sense due to how they are of course organisms. D is your best bet.