The fundamental niche of an organism is determined by _____

The fundamental niche of an organism is determined by _____

factors, while the realized niche is determined by _____ factors:

A) biotic; abiotic

B) abiotic; biotic

C) biotic; biotic

D) abiotic; abiotic

Answer: B) abiotic; biotic

There exist some key factors that define the basic necessity of an organism and these are the physical and chemical characteristics of the habitat including temperature, availability of water and nutrients, and type of soil and humidity. They describe the set of circumstances that is possible to support the life and production of the offspring of the organism. Conversely, the realized niche is bounded by biotic factors which are the living environmental factors including competition, predation, mutualism and the presence of other species. The realized niche is the active, or usable, set of conditions and resources available for utilization by some specific organism in association with other organisms in its biotope.