(a) What is El Nino effect? Explain how it accounts for biodiversity loss.

(b) Explain any three measures that you as an individual would take, to reduce environmental pollution.

State Gause's Competitive Exclusion Principle.

83.

Why are sacred groves highly protected ?

Mention the kind of biodiversity of more than a thousand varieties of mangoes in India represent. How is it possible?

(a) Why should we conserve biodiversity? How can we do it?

(b) Explain the importance of biodiversity hot-spots and sacred groves.

Differentiate between in-situ and ex-situ approaches of conservation / of biodiversity.

The cell division involved in gamete formation is not of the same type in different organisms. Justify.

In situ conservation can help endangered / threatened species. Justify the statement.

What is genetic conservation?