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Class Reptilia - Characteristic Features - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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Class Reptilia - Characteristics Features is considered one of the most asked concept.
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19 Questions around this concept.
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Which of the following characteristic features always holds true for the corresponding group of animals?
Concepts Covered - 1
Class Reptilia - Characteristics Features
- This class includes animals with creeping or crawling mode of locomotion
- Hence 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), Chameleon (Tree lizard), Calotes (Garden lizard), Crocodilus (Crocodile), Alligator (Alligator). Hemidactylus (Wall lizard), Poisonous snakes – Naja (Cobra), Bangarus (Krait), Vipera (Viper).
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