One of the endangered species of Indian medicinal plants is that of

Which group of vertebrates has the highest number of endangered species?

Why do alien species often become invasive when introduced into a new habitat?

Which species extinction in the last $500$ years was due to overexploitation by humans?

Identify the incorrect match with respect to recently extinct animals and their place of extinction according to the $IUCN$ Red List.

Biodiversity loss occurs due to the reasons given below:
$(i)$ Habitat loss and fragmentation
$(ii)$ Co-extinction
$(iii)$ Over-exploitation
$(iv)$ Alien species invasion
Identify the correct reasons.