Match Column $-I$ with Column $-II$ and select the correct option.

Column $-I$	Column $-II$
$(a)$ Predation	$(i) \ (-, 0)$
$(b)$ Commensalism	$(ii) \ (+, -)$
$(c)$ Mutualism	$(iii) \ (+, 0)$
$(d)$ Amensalism	$(iv) \ (+, +)$

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

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:

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

Which of the following mechanisms helps organisms protect themselves from predators?

Explain predation with a suitable example.