Predators play an important role in:

$A$ high density of elephant population in an area can result in

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.

Match List-$I$ with List-$II$.

List-$I$ (Interacting species)	List-$II$ (Name of interaction)
$A$. $A$ Leopard and a Lion in a forest/grassland	$I$. Competition
$B$. $A$ Cuckoo laying egg in a Crow's nest	$II$. Brood parasitism
$C$. Fungi and root of a higher plant in Mycorrhizae	$III$. Mutualism
$D$. $A$ cattle egret and a Cattle in a field	$IV$. Commensalism

Choose the correct answer from the options given below.

Character displacement takes place when there is

Who proposed the Competitive Exclusion Principle?