Animals/organisms that float on the surface of water are known as:

The concept of mimicry was given by ...$A$...
Father of Indian Plant Ecology ...$B$...
The term 'ecology' was coined by ...$C$...
Here $A, B$ and $C$ refer to:

Which of the following is included in the study of ecology?

Who is known as the Father of Indian ecology?

Planktons are those unicellular or multicellular organisms which:

The part of the earth in which life exists is known as: