Consider following features: (a) Internal fertilisation(b) A pair of jaws(c) Mostly viviparousSelect the correct option of animal groups which possess all the above characteristics.
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a
Chondrichthyes and Osteichthyes
b
Reptilia and Mammalia
c
Amphibia and Mammalia
d
Chondrichthyes and Mammalia
answer is D.
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Detailed Solution
Chondrichthyes (bony fishes) and Mammalia are with jaws (Gnathostomata). They exhibit internal fertilisation and are viviparous.Osteichthyes (bony fishes), amphibians and reptiles are oviparous.
Consider following features: (a) Internal fertilisation(b) A pair of jaws(c) Mostly viviparousSelect the correct option of animal groups which possess all the above characteristics.