Question

Reptiles – are first amniotes. Why significant? What are some of their defining characteristics? Endothermic vs. Exothermic.

Answer 1

Reptiles possess amniotic eggs first. Amniotic eggs have extraembroynic membranes. which helps:-
to Protect the embryo from dessication. support the embryo like cushion.promote gas transfer.and helps remove the waste materials.

The amniotic egg is the major distinguishing characteristic that distinguishes the reptiles, birds, and mammals from non-aminote vertebrates.

characteristic:-

->All reptiles have a backbone, that define them as vertebrates.

->All reptiles produce eggs. Most reptiles lay hard-shelled eggs, but some give birth to live young.

->All reptiles have scales or scutes on their body

Reptiles are ectothermic or cold-blooded, which means they cannot control their own body temperature and depend on surrounding environment for heat.

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