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Towards modernisation

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Class 10 Class 12

Name 
A limbless animal


Ichtyophis


A warm-blooded animal 


Dog


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

D.

Cartiliginous- endoskeleton Chondrichthyes

Repltiles have 3-chambered heart except for crocodiles. 
Mammals are vivparous except prototherian mammals
Chordates are 

Repltiles have 3-chambered heart except for crocodiles. 
Mammals are vivparous except prototherian mammals
Chordates are 


Name 
A cold-blooded animal


Lizard


An animal having cnidoblasts

Obelia