which two levels of ecological organization include members of only a single species?\npopulation and…

which two levels of ecological organization include members of only a single species?\npopulation and community\norganism and population\ncommunity and organism\necosystem and population
Answer
Brief Explanations:
An organism is a single - living entity of a species. A population is a group of individuals of the same species living in the same area. A community consists of different species, and an ecosystem includes living organisms and their non - living environment.
Answer:
B. organism and population