In an ecosystem, keystone species are those which

are most frequent

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are present in the largest numbers

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attain a large biomass

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contribute to ecosystem properties

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Solution

The correct option is D contribute to ecosystem properties
An ecosystem comprises of various biotic and abiotic components. In biotic components living beings (plants, animals and microbes) are included. These living beings may be various species. Those species which have a very important impact on the ecosystem or which majorly affect the characteristics of the ecosystem are called keystone species.

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Similar questions

Q. In an ecosystem, keystone species are:

Q. A keystone species is removed from an ecosystem. This will not cause

Q. Which of the following is not a consequence of removing a keystone species from an ecosystem?

Q1. Consider the following statements.

i) An Indicator species is a species whose presence and role within an ecosystem has a disproportionate effect on other organisms within the system.

ii) A Keystone species is a species whose presence, absence, or relative well-being in a given environment is a sign of the overall health of its ecosystem.

Which of the above statements is/are correct?

Q. Assertion : Removal of keystone species doesn't cause any serious disruption in the functioning of the community.
Reason : keystone species are low in abundance (or biomass) than the dominant species.

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