Kangaroo is a member of which order
Monotremata
Marsupialia
Prototheria
Insectivora
Describe various biogeographical evidences.
The original birds were ________, from which the various Darwin’s finches arose.
Assertion : Darwin's finches show a variety of beaks suited for eating large seeds, flying insects and cactus seeds.
Reason : Ancestral seed-eating stock of Darwin's finches radiated out from South American mainland to different geographical areas of the Galapagos Islands, where they found competitor-free new habitats.
Darwinian fitness can be estimated by
Austrulian marsupials are examples of