Why do conservation biologists believe that global warming may lead to extensive declination of species ?

Since little change in plant community composition has occurred in the past, we cannot expect present communities to adapt to climate change.
The magnitude of climate change will be much greater than past periods of climatic change.
Many plant species may not beable to shift their ranges at the same pace as the northern movement of temperature zones.
All of the above

Solution

Although the expected magnitude of the climate change due to global warming may be similar to past climate changes, the rate of warming will be greater. This may make it impossible for many species to extend their ranges at the same rate as the northward movement of the temperature zones.

If S is species richness, A is area, Z is slope of the line,andthe C is Y-intercept, then the species richness will be shown as

Diversity of habitat over the total landscape is called

Reason of diversity in living being is due to

Solution

Diversity is due to the long term evolutionary changes. Adaptability to continuous changes in environmental conditions is important for natural selection of variants and variations generation after generation leading to emergence of diverser descendants.

The taxa believed likely to join the endangered category in near future is called:

Solution

Vulnerable species are threatened species which are likely to join the category of endangered.

Endemic plants are those which are

One of endangered species of Indian medicinal plants is

Solution

Podophyllum is one of the endangered species of Indian medicinal plants. It is used to remove benign (not cancer) growths, such as certain kinds of warts. It works by destroying the tissue of the growth.

The most biodiversity rich zone in India

Solution

India has two biodiversity hot spots, namely:
1. Himalaya (Eastern Himalayas)
2. The Western Ghat

Habitat loss and fragmentation, over exploitation, alien species invasion and co-extinction are causes for

Which of the following is not a step in understanding biodiversity ?

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