Question

Which of the following series is organized in successive steps according to the levels of organization used by ecologists?A.population -> ecosystem -> communityB.species -> ecosystem -> populationC.species -> community -> biosphereD.population -> community -> ecosystem

Answer 1

Starting at least level up to the largest as organized by ecologists, see the chart below.

Answer: option C) species -> community -> biosphereD

Explanation:

Species refers to closely related organisms (plant or animal). When different species of organisms live together in a habitat where they feed on one another and become codependent on one another, a COMMUNITY has been formed.

A BIOSPHERE, however is composed of many ecosystems i.e different species of plants, animals and microorganisms relating with their environment. Thus, a biosphere = Communities + environment