NEET-I 2016
55. Which of the following characteristic features always
holds true for the corresponding group of animals?
(1) Cartilaginous
endoskeleton
Chondrichthyes
(2) Viviparous
Mammalia
Chordata
(3) Possess a mouth with
an upper and a lower
jaw
Reptilia
(4) 3 - chambered heart
with one incompletely
divided ventricle
Answers
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Explanation:
1) cartilagenous endoskelten chondrichytes
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