Question

question 7
choose the true statement about the focus of community ecology, population ecology, or ecosystem ecology.
life tables are used in ecosystem ecology to identify which populations to protect.
nonliving elements play an important role in community ecology.
ecosystem ecology studies mostly small - scale phenomena.
population ecology considers the number and age structures of individuals in an area.

Explanation:

Population ecology focuses on populations of organisms, studying aspects like population size, density, age - structure, and growth rates of individuals in a given area. Life tables are used in population ecology, not ecosystem ecology. Community ecology focuses on interactions among different species, and non - living elements are more relevant in ecosystem ecology. Ecosystem ecology studies both small - and large - scale phenomena.

Answer:

Population ecology considers the number and age structures of individuals in an area.