Describe the Prevailing of species found on the earth

Full forms : $IUCN$

Identify $X, Y$ and $Z$ from figure:

$X-Y-Y$

$A$- More than $70\%$ of all the species recorded are animals

$R$ - Plants comprises more than $22$ percent species.

How does species diversity differ from ecological diversity ?

Nearly ............. species of plants and ...........as many of animals have been recorded from India.