Amazonian rain forest has the greatest biodiversity in earth. List any two hypotheses that are proposed by the biologists to account for the greater biological diversity.

Statement - I : The largely tropical Amazonian rain forest in North America has the greatest biodiversity on Earth. Statement - II : Amazon forest is home to more vertebrates than invertebrates.

(a) " India has greater ecosystem diversity than Norway". Do you agree with the statement ? Give reasons in support of your answer. (b) Write the difference between gentic biodiversity and species biodiversity that exists at all the levels of biological organisation.

Identify true or false in the following statements : (i) Team biodiversity was popularised by Edward Wilson to describe the combined hetrogeneity at all levels of biological organisation. (ii) More than 5000 genetically different varieties of mango occur in India. (iii) Western Ghats have greater amphibian species diversity as compared to Eastern Ghats. We could lose all wealth of biodiversity in less than two decades if the present rates of species losses continue.

Consider the following six statements (a-e) about causes of biodiversity losses. a. Tropical rain forests once covering more than 14% of the earth's land surface, these forests now cover no more than 0.6%. b. Biological system should not be exploited beyond the degree of their renewability. c. Nile perch, a large predator fish was introduced into Lake Victoria of East Australia. d. Lantana is an indigenous plant of our country. e. Recent illegal introduction of the American catfish for aquaculture purpose is posing a threat to the indigenous catfishes in our rivers. Which of the above statement(s) is/are correct?

Consider the following statements with respect to patterns of biodiversity . A. With very few exceptions, tropics (Iatitudinal range of 23.5^(@)N to 23.5^(@) S ) harbour more species than temperate or polar areas. B. In general, species diversity increases as we move away from the equator towards the poles . C. The diversity of plants and animals is uniform throghout the world but shows a rather even distribution . D. The largely tropical Amazonian rain forest in South America has the greatest biodiversity on earth. Of the above statements :