Biology Regents Practice Exam 2026 – The All-in-One Guide to Master Your Regents!

The term 'niche' in ecology specifically refers to the role an organism plays in its environment, which includes the organism's interactions with biotic and abiotic factors, its behavior, and its activities within its habitat. This encompasses how it obtains food, how it interacts with other organisms, its reproductive habits, and how it contributes to the ecosystem as a whole.

A niche is not just the physical location where an organism lives, which is more accurately described by the term 'habitat'; rather, it involves a broader understanding of how that organism fits into the community and the environment according to its needs and pressures. This concept is essential in understanding biodiversity, ecosystem dynamics, and conservation efforts as it highlights the importance of each species in maintaining the balance of an ecological community. Understanding an organism's niche is crucial for studying ecosystem interactions and the impacts of changes in the environment, such as climate change or habitat destruction.