Final answer:
A niche refers to the function or occupation of a life-form within a community, determined by its interactions with biotic and abiotic factors in its environment.
Explanation:
Niche is best defined as the function or occupation of a life-form within a community. It includes the physical, chemical, and biological factors that maintain the health and vitality of the organism. An organism's niche is determined by its interactions with abiotic and biotic factors in its environment, such as food requirements and predators.
Learn more about Niche definition in Biology here:
https://brainly.com/question/30759759
