Mark true or false in the following statements.
(i) Habitat loss and fragmentation is the most important cause driving animals and plants to extinction.
(ii) Steller's sea cow has been extinct due to habitat loss.
(iii) When alien species are introduced deliberated or unintentionally for whatever purpose, some of them turn invasive and cause extinction of indigenous species.
(iv) When a host fish species becomes extinct its unique assemblage of parasites also meets the same fate.

Answer

(i) True
(ii) Fasle,
(iii) True
(iv) True