Question

A and B are the different biotic factors of ecosystem .Complete the cycle by naming them.

Answer 1

Biotic factors are any living components of the ecosystem that affects another living organism or shapes the ecosystem. In the given cycle A denotes plants that convert CO${}_2$ to O${}_2$ during photosynthesis and B denotes animals, that convert O${}_2$ to CO${}_2$ by the process of respiration.