Gause's law is true only when

Given below are two statements:
Statement $I$: Gause's competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement $II$: According to Gause's principle,during competition,the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements,choose the correct answer from the options given below :

In an intertidal area, when all starfish were removed, more than $Q$ species of invertebrates became extinct within a year due to $P$.

Which of the following is an ectoparasite?

You never see any cattle or goat browsing on $Calotropis$ due to

Which of the following statements is true regarding a predator?