$A$ parasite that lives on another parasite is called:

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.

. . . . . . $A$ . . . . . . is a potent force in organic evolution. Identify the $A$.

Explain the general information about population interaction and show the various outcomes observed between them.

Given below are two statements $:$
Statement-$I$ : Species facing competition might evolve mechanisms that promote co-existence rather than exclusion.
Statement-$II$ : In endoparasites,morphological and anatomical features are greatly simplified while emphasising their reproductive potential.
In the light of the above statements,choose the correct answer from the options given below.

Gause's principle of competitive exclusion states that