Define biotic community. Who coined the term biocoenosis for biotic community and list two properties of biotic community.

A biotic community is the assemblage of

Define population and community.

Explain the dominance of species in a biotic community?

The biotic community together with the physical environment forms an interacting system known as______.

Write two differences between biotic & abiotic elements of an ecosystem.

[A] : The biotic community and the non living environment of an area function together to form a ecosystem . [R]: The change in biotic components causes a change in abiotic components also.

Vertical distribution of different species occupying different levels in a biotic community is known as

[A] : A biotic community exhibits adaptive radiation . [R] : The organisms of different populations have some features in common due to the effect of the same abiotic factors of the environment .

[A] : Ecology is the study of interrelationship between living organisms and their non-living environment . [R] : The biotic community and non-living environment of an area function together to form an ecosystem .

Explain briefly the following terms used in communication system: Repeater