Question

Study the four statements $\left(a\right)$ to $\left(d\right)$ given below and select the two correct ones out of them.

The two correct statements are
(a) A lion eating a deer and a sparrow feeding on grain are ecologically similar in being consumers.
(b) Predator star fish, Pisaster helps in maintaining species diversity of some invertebrates.
(c) Predators ultimately lead to the extinction of prey species.
(d) Production of chemicals such as nicotine, strychnine by the plants cause metabolic disorders.

• A. Only (c) and (d)
• B. Only (a) and (c)
• C. Only (a) and (b)
• D. Only (d) and (b)

Answer 1

The correct option is C Only (a) and (b)

A lion eating a deer and a sparrow feeding on grain are ecologically similar being consumers is correct as both receive energy by consuming other organisms.

The starfish Pisaster is a keystone species in the rocky marine intertidal communities of the northwest coast of North America. This predatory starfish feeds on the mussel Mytilus californianus and is responsible for maintaining much of the local diversity of species within certain communities.

Predators ultimately lead to the extinction of prey species is an incorrect statement as predators do not lead to extinction, they actually maintain the equilibrium in the ecosystem.

Production of chemicals such as nicotine, strychnine by the plants doesn't

cause any harm to their metabolism. Therefore, the correct answer is option C.