Which of the following statements is true regarding a predator?

$A$: Five closely related species of warblers living on the same tree can avoid competition and co-exist.
$R$: This occurs due to behavioural differences in their foraging activities.

What type of relationship is observed between insect-pollinated flowers and their pollinators?

Who proposed the Competitive Exclusion Principle?

Which one of the following is most appropriately defined?

Statements
$I.$ Recent studies support competition as suggested in 'Gause's Competitive Exclusion Principle'.
$II.$ Gause's hypothesis states that if two species compete for the same resources,then one will be eliminated by the other species.
$III.$ More recent studies point out that species facing competition might evolve mechanisms that promote co-existence rather than exclusion.
$IV.$ Gause's competitive exclusion principle is effective when resources are in excess.
$V.$ Unlimited resources give better opportunity for adaptation.
Choose the correct combination of statements.