Question

2. distinguish between the following.
(a) Flora and Fauna
(b) Biosphere
(c) Extinct and endangered species
(d) Wildlife sanctuary and Biosphere reserve
(e) National park and wildlife sanctuary

3. what are the factors responsible for Habitat destruction ?
4. List the factors which lead to the formation of endemic species.
6. Why has the government created protected areas? What are the different protected areas ?​​

Answer 1

Explanation:

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A.

The term ‘flora’ is defined as all the naturally occurring native plants of a particular region. Flora indicates all forms of plant life, more generally used to represent the plant life of a particular place.

Fauna is all the animal life present in a particular place or at a particular time period. Fauna indicates all forms of animal life, more generally used to represent the animal life native to a particular place.

B.

, the biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and atmosphere.

C.

Extinction of a particular animal or plant species occurs when there are no more individuals of that species alive anywhere in the world - the species has died out.

Endangered animals and plants are at risk of extinction - there are so few of them that they might soon be wiped out altogether.

D.

In wildlife sanctuaries, on the other hand, some human activity may be permitted, such as livestock grazing.

Biosphere reserves are larger areas, which may include one or more national park and/or wildlife sanctuary. These also protect human communities and their ways of life.

E.

Wildlife Sanctuaries are famous for the conservation of wildlife, which includes animals, insects, microorganisms, birds, etc. of different genes and species.

On the other hand, National Parks are highly known preserving the flora, fauna, landscape and historical objects.

3.

Clearing habitats for agriculture is the principal cause of habitat destruction. Other important causes of habitat destruction include mining, logging, trawling, and urban sprawl. Habitat destruction is currently ranked as the primary cause of species extinction worldwide.

4.

isolating mechanisms, genetic drift, founder effect, and migration. sequence events that can lead to reproductive isolation of two populations.