Question

The term niche of a species refers to:

• A. specific place where an organism lives
• B. competitive power of an organism
• C. specific function of an organism
• D. specific and habitual function

Answer 1

The correct option is A specific place where an organism lives

An ecological niche is the role and position a species has in its environment; how it meets its needs for food and shelter, how it survives, and how it reproduces. A species' niche includes all of its interactions with the biotic and abiotic factors of its environment. Biotic factors are living things, while abiotic factors are nonliving things. It is advantageous for a species to occupy a unique niche in an ecosystem because it reduces the amount of competition for resources that species will encounter. All living organisms have what is called a fundamental niche. The fundamental niche includes all possibilities open to the organism within that environment: all possible sources of food, all open behavioral roles in the environment, and all suitable habitats available to it.

So the correct option is 'specific place where an organism lives'.