The exploration of molecular,genetic,and species-level diversity for products of economic importance is known as $..............$

The variation shown by the medicinal plant $Rauwolfia \text{ } vomitoria$ growing in different Himalayan ranges represents:

Given below are two statements.
Statement-$I$: Genetic diversity is the diversity in the number and type of genes as well as chromosomes present in the same species and variations in the genes and their alleles.
Statement-$II$: Species diversity deals with the variety of species as well as the number of individuals of different species observed in an area.
In light of the above statements,select the correct answer from the options given below.

How many megadiverse countries are there in the world?

Amongst animals,insects comprise

The number of species facing the threat of extinction worldwide is