5.2. Interaction of living things

Organisms interact on four levels: individuals make up a population, populations make up a community, communities make up a biome, and biomes make up the biosphere. Any community of living things interacting with its environment is an ecosystem.

What is a biome?A biome is a community of plants and animals that have common characteristics for the environment they exist in.

How do organisms interact with the environment?

Ecology is the study of how organisms interact with their environment, including both abiotic (non-living) and biotic (living) aspects of the environment. 

ECOLOGY LEVELS

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