1.

Question : In the ' Rivet - popper ' hypothesis , Ehrlich compared ecosystem with airplane . Accordingly identify ( A ) and ( B ) which were compared to rivets and rivets on wings respectively.

Answer»

A = KEYSTONE SPECEIS , B = Species
A = Species , B = Keystone species
A=species, B=keystone species
A = PREY , B = Predators

Answer :C


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