Write the characteristics of Class Mammalia.

1.	Write the characteristics of Class Mammalia.
Answer» Class-Mammalia: It includes big animals, like Kangaroo, bat, monkey, cow and man. Developed mammary glands are found in females, mothers feed milk to young ones secreted by mammary glands. Their body is divided into head, neck, thorax and tail. Hairs are present on the body. Ear pinnae (External ear) is present. They are warm-blooded. They respire through the lungs. The heart is four-chambered. The heart has 2 auricles and 2 ventricles. Most of the mammals are viviparous. Examples are: Pteropus (bat), Homo (man), Herpestes (mongoose), Ratus (rat), Panthera (lion, tiger).

Answer»

Class-Mammalia: It includes big animals, like Kangaroo, bat, monkey, cow and man. Developed mammary glands are found in females, mothers feed milk to young ones secreted by mammary glands. Their body is divided into head, neck, thorax and tail. Hairs are present on the body. Ear pinnae (External ear) is present. They are warm-blooded. They respire through the lungs. The heart is four-chambered. The heart has 2 auricles and 2 ventricles. Most of the mammals are viviparous.

Examples are: Pteropus (bat), Homo (man), Herpestes (mongoose), Ratus (rat), Panthera (lion, tiger).

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