Which of the following statements is correct?

What is the significance of mimicry?

Given below are two statements:
Statement $I:$ Gause's 'Competitive Exclusion Principle' states that two closely related species competing for the same resources cannot co-exist indefinitely and the competitively inferior one will be eliminated eventually.
Statement $II:$ In general,carnivores are more adversely affected by competition than herbivores.
In the light of the above statements,choose the correct answer from the options given below:

Two different species cannot coexist in the same niche for a long time. This rule is known as .......

Species $A$ $(-)$ and Species $B$ $(O)$ show which of the following interactions?

If a predator overexploits its prey in an ecosystem,what might be the consequences of this?