Answer:
Populations are groups of individuals of the same species living in the same area. Species are a group of living organisms that are capable of interbreeding and producing fertile offspring. Communities are groups of different species living in the same area and interacting with each other. Ecosystems are comprised of all the living and nonliving components in a specific area, including the interactions and relationships between communities of different species and the physical environment.
In other words, populations are a part of species, species are a part of communities, and communities are a part of ecosystems. The interactions and relationships between different populations, species, and communities help to determine the structure and function of an ecosystem. The health of an ecosystem depends on the balance of its components, including its living and nonliving components, and any changes to one part of an ecosystem can have impacts on the entire system.