Keystone species deserve protection because these

are capable of surviving in harsh environmental conditions

indicate presence of certain minerals in the soil

have become rare due to overexploitation

play an important role in supporting other species.

Solution

play an important role in supporting other species.

Keystone species are species which have significant and disproportionately large influence on the community. Removal or decrease in their number causes disruption in structure and function of community. For example in intertidal regions starfish feeds on mussels. Removal of starfish leads to dominance of mussels that excludes algae and browsing species. In tropical rain forests, fig trees function as keystone species as they provide fruits to a number of animals during the period of food scarcity.

Some More Questions From Evolution Chapter

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Evolution

Keystone species deserve protection because these

are capable of surviving in harsh environmental conditions

indicate presence of certain minerals in the soil

have become rare due to overexploitation

play an important role in supporting other species.

Some More Questions From Evolution Chapter

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

Name the different eras of geologic time scale.

What is single step large mutation?

Consider a thorn in Bougainvillea and a tendril in cucurbita. Are these two organs homologous or analogous ? Give reason.

Give two examples that represent adaptive radiation.

Which theory attempts to explain to us the origin of universe?

Evolution is a discontinuous process. Is it correct ?

Give the three key factors of the modern concept of evolution.

Which other term can be used for natural selection ?

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For Daily Free Study Material Join wiredfaculty

Evolution

Keystone species deserve protection because these are capable of surviving in harsh environmental conditions indicate presence of certain minerals in the soil have become rare due to overexploitation play an important role in supporting other species.

Some More Questions From Evolution Chapter

What is meant by the term fossil ?

What is the type of evolution in which the same structure developed along different directions due to adaptations to different needs ?

Name the different eras of geologic time scale.

What is single step large mutation?

Consider a thorn in Bougainvillea and a tendril in cucurbita. Are these two organs homologous or analogous ? Give reason.

Give two examples that represent adaptive radiation.

Which theory attempts to explain to us the origin of universe?

Evolution is a discontinuous process. Is it correct ?

Give the three key factors of the modern concept of evolution.

Which other term can be used for natural selection ?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

Keystone species deserve protection because these

are capable of surviving in harsh environmental conditions

indicate presence of certain minerals in the soil

have become rare due to overexploitation

play an important role in supporting other species.