Question

characteristics of mammalia​

Answer 1

General Characteristics of Class Mammalia:

1. These animals are warm blooded, hairy and have mammary or milk producing glands, (mammary glands). They are the only animals which nourish their young ones with milk. There are about 4,000 species of mammals found in the world.

2. They are homoiothermous (warm blooded).

3. Oil glands (sebaceous glands) and sweat glands (sudoriferous glands) are present in the skin.

4. Teeth are of different types (heterodont) and are embedded in the sockets of jaws (the codont). These are developed twice during the life-time of the animal (diphyodont), milk and permanent teeth.

5. Except a few, mammals possess seven cervical (neck) vertebrae.

6. The skull is dicondylic i.e., with two occipital condyles.

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Answer 2

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Hello !

Here's ur answer -

#. Characteristics of Mammalia -

a. They possess glands such as mammary glands, oil glands and sweat glands, etc.

b. They have tiny hairs on their body .

c. Females give direct birth to young ones. ( there are two exceptions).

d. They have four - chambered heart.

e. They are warm - blooded.

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