LIFE SCIENCE

Detailed explanation-1: -A community is composed of all of the biotic factors of an area. An ecosystem includes the living organisms (all the populations) in an area and the non-living aspects of the environment (Figure below). An ecosystem is made of the biotic and abiotic factors in an area.

Detailed explanation-2: -An ecosystem is made up of all the communities in an area and the abiotic factors that affect them. When we study ecosystems, we look at the way living and nonliving parts interact and affect each other. A community is made of all the populations of interacting species in a given area.

Detailed explanation-3: -An ecosystem includes all the living things (plants, animals and organisms) in a given area, interacting with each other, and with their non-living environments (weather, earth, sun, soil, climate, atmosphere). In an ecosystem, each organism has its own niche or role to play.