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Animal Kingdom

Question
CBSEENBI11002034
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Which of the following characteristic features always holds true for the corresponding group of animals?

  • Viviparous Mamalia
  • Posess a mouth with an upper and lower jaw Chordata
  • 3-chmbered heart with one incompletely divided ventricle Reptilia
  • Cartiliginous- endoskeleton Chondrichthyes

Solution

C.

3-chmbered heart with one incompletely divided ventricle Reptilia

Except for crocodilians, which have a four-chambered heart, all reptiles have a three-chambered heart consisting of two atria and one ventricle. The chamber called the right atrium receives deoxygenated, or 'spent,' blood returning from the body tissues.

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