Question

Keystone species in an ecosystem are those
(a) present in maximum number
(b) that are most frequent
(c) attaining a large biomass
(d) contributing to ecosystem properties

Answer 1

Correct option: (d) contributing to ecosystem properties Explanation: The keystone species in an ecosystem are those who are the main contributors to the ecosystem.

Answer 2

Keystone spicies in an ecosystem are those contributing to the ecosystem properties.

Option (d)

Explanation:

• In an ecosystem the unit of this is known as population of a particular spicies.

• An ecosystem consists of a wide range of spicies that live together by mutual adaptability.

• In this ecosystem the spicies which contributes most in the ecosystem is known as the keystone spicies.

• It may not have a large number in the ecosystem but plays a large role in the ecosystem.

• For every ecosystem there is a keystone spicies.

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