Final answer:
The niche of an organism defines its role in a community and includes its interactions with the environment. It is crucial for understanding an organism's place in the ecosystem.
Explanation:
Niche: The niche of an organism refers to its function or occupation within a community, incorporating physical, chemical, and biological factors that sustain its health. It also involves interactions with abiotic factors in its environment.
Importance in an Ecosystem: In an ecosystem, each species occupies a specific ecological niche, defining not just where it lives but also its role in the ecosystem's functioning and dynamics.
Habitat vs. Niche: While a habitat is the physical environment where an organism lives, a niche encompasses the organism's role and interactions within that habitat.
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