Regression coefficient is shown by ……………………….. in the Humboldt’s equation [Log S = log C + Z log A] of species richness.

Choose an incorrect statement:

Who observed that within a region, species richness increased with increasing explored area, to a certain limit ?

Who was Alexander von Humboldt ?

Which is the most well-known pattern of biodiversity ?

Name the scientist who studied ecosystem by using analogy of ‘The rivet popper hypothesis’.

When is the serious threat developed to an ecosystem ?

Which animal group is more vulnerable to the process of extinction ?

What are the ‘The Evil Quartet’ for the loss of biodiversity ?

Introduction of which aquaculture fish has created threat to the indigenous catfishes in Indian rivers ?