Assertion :Removal of keystone species cause serious disruption in the functioning of the community. Reason: Keystone species are low in abundance (or biomass) than the dominant species.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Keystone species are relatively less abundant than the dominant species but exert a profound effect on structure and functioning of the ecosystem as they regulate the availability of food, water and other resources. Removal of these species makes the other species in the community more abundant, rarer or may even cause their extinction. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
So, the correct answer is option B.

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Similar questions

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

{SiO}_{2}

{CaCO}_{3}

CaO

{CaCO}_{3}

{SiO}_{2}

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