Who defined ecology as the study of form,function,and factor?

Which of the following levels is considered non-biological in terms of size?

Animals living in the open sea are known as:

What is Ecology? Explain.

The study of inter-relationship between living organisms and their environment is called

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: