Large woody vines are commonly found in .......

$A$: Some organisms can maintain internal homeostasis by means of physiological processes and are called 'Regulators'.
$R$: 'Regulators' can maintain internal homeostasis only up to a limit of stressful conditions.

Give an example for:
$(a)$ An endothermic animal
$(b)$ An ectothermic animal
$(c)$ An organism of benthic zone

In plants,which of the following explains their functions and characteristics?

Which one of the following is $NOT$ a characteristic of a habitat?

What is the most important factor for the success of an animal population?