Biologists are unable to make an accurate estimate of the number of species for which of the following organisms?

Which of the following represents the highest number of species in the world?

Animals account for more than $P$ of all species recorded. Even if we combine all plant species (algae,fungi,bryophytes,gymnosperms,and angiosperms),they account for no more than $Q$ of the total percentage.

Choose the incorrect sentence.

India has only $......P.....$ of the world's land area,but its global species diversity is an impressive $.....Q.....$.

According to the $IUCN$ Red List $(2004)$, $784$ species have become extinct in the last $500$ years. Match the extinct species given in Column-$I$ with their respective numbers in Column-$II$.

Column-$I$	Column-$II$
$(P)$ Vertebrates	$(I)$ $338$
$(Q)$ Invertebrates	$(II)$ $87$
$(R)$ Plants	$(III)$ $359$