Choose the incorrect pair of extinct animal and their country from the following.

Presently,$....A....\%$ of all mammal species and $....B....\%$ of all gymnosperm species in the world face the threat of extinction.

The impacts of loss of biodiversity may lead to:
$I$. Lowered resistance to environmental perturbation
$II$. Decrease in plant production
$III$. Increased variability in ecosystem processes like water use,pest/disease cycle,and plant productivity
$IV$. Increase in plant production
Choose the correct option.

The current loss of biodiversity is considered to be the sixth extinction. How is this different from previous extinctions?

According to $IUCN$ Red List $(2004)$ documents,how many species have become extinct in total?

Provide information on the history of species extinction and state its effects.