During adverse season, therophytes survive by

Keystone species deserve protection because these

Concept of mimicry was given by ...$A$...

Father of Indian Plant Ecology ...$B$...

Term 'ecology' coined by ...$C$...

Here $A, B$ and $C$ refers to

Which of the following is correct

Which of the following is capable of causing green house effect in the environment

$A$ : Holistic approach explains the environmental interactions.
$R$ : All environmental factors are integrated with no limits of time and space.