Gause's law is true only when

The association of a sea anemone living on the shell of a hermit crab is known as:

Study the four statements $(i-iv)$ given below and select the two correct ones out of them.
$(i)$ $A$ lion eating a deer and a sparrow feeding on grains are ecologically similar in being consumers.
$(ii)$ Predator star fish $Pisaster$ helps in maintaining species diversity of some invertebrates.
$(iii)$ Predators ultimately lead to the extinction of prey species.
$(iv)$ Production of chemicals such as nicotine,strychnine by the plants are metabolic disorders.
The two correct statements are

In commensalism,

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.

Resource partitioning includes