The number of species facing the threat of extinction worldwide is

Match the following based on the biodiversity of the Amazon rainforest:

Column-$I$	Column-$II$
$(P)$ Plants	$(I)$ $40,000$
$(Q)$ Fishes	$(II)$ $3,000$
$(R)$ Birds	$(III)$ $1,300$
$(S)$ Mammals or Amphibians	$(IV)$ $427$
$(T)$ Reptiles	$(V)$ $378$

Which of the following countries is not included in the Scandinavian countries?

Which of the following groups of mammals exhibits the greatest diversity in terms of the number of genera and species?

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.

The state of Gujarat has river,desert,forest,and lake ecosystems,thus exhibiting a diversity of life. Which measure do you use to denote total diversity in such a case?