Community ecology is the study of how groups of different species interact with each other and their environment within a defined area.
Think of community ecology like a bustling city. Each species is like a different type of resident—teachers, doctors, construction workers, etc.—and they all have to interact and rely on each other in various ways for the city (or ecosystem) to function properly.
Biodiversity: The variety of life in a particular habitat or ecosystem, including the number of different species present.
Trophic Level: The position an organism occupies in a food chain - what it eats, and what eats it.
Symbiosis: A close interaction between two different biological species, which may be beneficial (mutualism), harmful (parasitism), or neither (commensalism).
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