There are some differences, though. Mammals have hair all over their bodies, while reptiles have scales. Mammals have live births and produce milk for their young, while reptiles lay eggs. Reptiles have only three-chambered hearts, mammals have four
Birds such as eagles have feathers and reptiles such as a lizard has dry scaly skin. Birds are warm blooded, and reptiles are cold blooded.
Homologous chromosomes are separated during anaphase of meiosis.
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