AP BIOLOGY

Detailed explanation-1: -They have mammary glands that help them produce milk to feed their younger ones. Presence of region of the brain known as Neocortex. Their skin possesses oil glands (sebaceous glands) and sweat glands (sudoriferous glands).

Detailed explanation-2: -Answer: All mammals have fur or hair, give birth to live young, have lungs and need air to breathe, are warm blooded, have four limbs if they live on land, and feed their babies milk from their breasts.

Detailed explanation-3: -1. What five characteristics do mammals have in common? Mammals have hair or fur; are warm-blooded; most are born alive; the young are fed milk produced by the mother’s mammary glands; and they have a more complex brain than other animals.

Detailed explanation-4: -Breastmilk is not a uniquely human feature. All mammals produce milk, and each mammalian species produces its own special blend best suited for its babies.