How many genetically different strains of rice are there in India?

Which of the following hypotheses suggests that ecosystems are like aeroplane wings, where the flight (ecosystem functioning) may or may not be compromised depending upon which species are being lost?

The measure of the variety of species and their relative abundance present within a region is referred to as

In the $Rivet$ $Popper$ hypothesis,what do the rivets represent?

Where is the greatest biodiversity on Earth found?

Which of the following rain forest is home to more than $40,000$ species of plants,$3,000$ of fishes,$1,300$ of birds,$427$ of mammals,$427$ of amphibians,$378$ of reptiles and more than $125,000$ invertebrates?