Two closely related species competing for the same resources cannot coexist indefinitely. This principle is known as:

This is an interaction in which one species benefits and the other species is neither harmed nor benefited.

Read the statements and choose the correct answer.
$Statement-I$: The Monarch butterfly feeds on poisonous weeds during its caterpillar stage.
$Statement-II$: It helps the butterfly to become distasteful to its predator.

Camouflage is an important mechanism where

The sea anemone and the clown fish are an excellent example of which of the following?

Which of the following is an example of a defense used by plants against herbivores?
$I.$ Production of caffeine,tannin,quinine
$II.$ More production of non-woody tissues
$III.$ Production of hairs,thorns,spines
$IV.$ Production of hormone-like chemicals that interfere with insect metamorphosis
Select the correct pair.