fill in the Blanks :
(i) Reserphine is produced by ______
(ii) According to Robert may the global species diversity is ___________
(iii) India contribute________percent of Global species diversity.
(iv) Zoological partk is an example of _____________conservation.
(v) Total number of Hot spot of earth is ______

According to Robert May, the global species diversity is about:

India constitues______percent of the world's land area and contributes______percent of the global species diversity.

More conservative and scientifically sound estimate made by Robert May places the global species diversity at about

More conservative and scientifically sound estimate made by Robert May places the global species diversity at about

Identify true or false statements. Correct each false statement to make it true. (i) Number of species in a community really matter to the functioning of the ecosystem. (ii) David Tilman proved that decreased diversity contributed to higher productivity. (iii) Rich biodiversity is not essential for ecosystem health but required for survival of human race of earth. (iv) Species which are dangerously harmful beings and their interests can be thought of deliberate extinction.

In the tropical rainforest, the majority of trees have showy animal-pollinated flowers. In temperate forests the majority of trees are wind pollinated. Which factors best explain these contrasting patterns ? (i) Wind is rare in tropical forests. (ii) Because of high species diversity in the tropics, individuals of trees species are often widely separated making wind an inefficient means of pollen dispersal. (iii) More opportunities for coevolved mutualisms exist in tropical forests because of the high diversity of animal species. (iv) Trees in tropical forests are mostly evergreen and year-round leaf canopies impede pollen dispersal by wind. (v) Flowering in tropical forests occurs over a short period of time when wind is absent.

How many of the following statements are CORRECT ? I. India is one of the 12 megadiversity countries of the world. II. India has only 8.1 percent of the worl's land area. III. Nearly 45,000 species of animals and twice as many as plants have been recorded from lndia. IV. According to May's global estimates , only 22 percent of the total species have been recorded so far. v. Nature's biological the library is burning even before we catalogued the titles of all books stocked there.