Question

Give three features of mammals and one difference between Prototheria, Metatheria and Eutheria

Answer 1

Answer:

I ONLY KNOW FEATURES

Explanation:

Mammals are endothermic vertebrates.

Have hair and fur on the body.

Have mammary glands.

Four chambered hearts.

Have sebaceous (fat secreting glands), sudoriferus (sweat), and scent glands.

Have heterodont dentation (different types of teeth)

Posses diaphragm.

Answer 2

Dear Student,

◆ Features of mammals -

• Mammals are warm-blooded animals.
• They have chambered heart.
• They have hair and teeth.
• They respire with the help of lungs and diaphragm.
• They have mammary glands and give milk.
• Most mammals give live birth to offsprings.

# Difference between Prototheria, Metatheria and Eutheria -

• Prototheria give birth by laying eggs.
• Metatheria give live birth to immature fetus.
• Eutheria give live birth to mature fetus by placenta.

Hope this helps you...