More than $......$ of the drugs currently sold in the market worldwide are derived from plants. (in $\%$)

In a given habitat,we have $20$ plant species and $20$ animal species. Should we call this 'diversity' or 'biodiversity'? Justify your answer.

Identify the incorrect statement from the following.

Which region shows a very high level of species richness?

Invertebrates constitute what percentage of the animal kingdom (in $\%$)?

Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms is used to denote such species?