Even if all the biodiversity hotspots are put together,they cover less than $2 \%$ of the Earth's land area.

Why is genetic variation important in the plant Rauwolfia vomitoria?

$A$: Taxonomic diversity represents the maximum level of species diversity.
$R$: It represents species of taxonomically different groups occurring in equal balance.

Identify the incorrect statement from the following.

Which ecosystem shows maximum genetic diversity?

Assertion : Diversity observed in the entire geographical area is called gamma diversity.
Reason : Biodiversity decreases from high altitude to low altitude.