Consider the following statements about Genetic diversity 1 It is concerned with the variation in ge...........

Environment and Ecology Biodiversity

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Consider the following statements about Genetic diversity:

1. It is concerned with the variation in genes within a particular species.

2. It allows species to adapt to changing environments.

3. The survival of individuals ensures the survival of the population.

Which of the above statements are correct?

1 and 2 Only

2 and 3 Only

1 and 3 Only

1, 2 and 3

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Explanation:

Levels of Biodiversity:

! Statements 1, 2 and 3 are correct:

Genetic Diversity: It is concerned with the variation in genes within a particular species. It is the total number of genetic characteristics in the genetic makeup of a species. Genetic diversity allows species to adapt to changing environments. This diversity aims to ensure that some species survive drastic changes and thus carry on desirable genes. The survival of individuals ensures the survival of the population.

! Species Diversity: It refers to the variety of plant and animal species present in a community or ecosystem. Species diversity varies across the world and in different ecosystems. Species diversity is very high in: Tropical rainforests, coastal zones. Species diversity is low in: small isolated islands and Polar Regions.

! Ecosystem Diversity: It refers to the variety of ecosystems found in a given area or region.