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  • All reptiles areOption: 1 Poikilothermic and amnioticOption: 2 Homeothermic 

All reptiles are

Option: 1

Poikilothermic and amniotic


Option: 2

Homeothermic and amniotic 


Option: 3

Poikilothermic and anamniotic


Option: 4

Homeothermic and anamniotic


Answers (1)

best_answer

 

 

Class Reptilia - Characteristics Features -

  • This class includes lizards, snakes, turtles, tortoises and crocodiles.
  • They show creeping motion, so they are called creeping chordates.
  • They are usually terrestrial.
  • They possess dry, scaly and cornified skin. They are adapted to live in deserts.
  • They do not have an external ear. Tympanum is responsible for hearing sensation.
  • They have a three-chambered heart with a partial septum in the ventricle. Crocodiles have a four chambered heart.
  • They have a monocondylic skull.
  • They are cold blooded.
  • Fertilization occurs internally. 
  • They are oviparous and development is direct. 
  • Their eggs contain a large yolk with an extra membrane called amnion. Amnion provides water to the developing embryo.
  • Examples: Chelone (turtle), Testudo (tortoise), Bungarus, Vipera, Naja etc.
     

-  Reptiles are cold blooded and amniotic.

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