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give the defferent between mammals​

Sagot :

Answer:

The Mammalia class is made up of 5000 species of vertebrates. The main difference between mammals and other vertebrates are three characteristics: hair, milk production in mammary glands, and three bones in the inner ear.

Defining the Problem

The definition of a bird requires feathers, a toothless beak, wings (usually allowing for flight), and the ability to lay hard-shelled eggs. Meanwhile, mammals have hair, give birth to live young, and the females produce milk from mammary glands — the structures for which the class is named.

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