NEET BIOLOGY

Detailed explanation-1: -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-2: -∙ The animals which give birth to their young ones are called viviparous animals or mammals. Animals like humans, cows, dogs, cats, lions, etc., give birth to their young ones.

Detailed explanation-3: -Zebras, bats, and bears do it. So do whales, tigers, and humans. These animals all nourish their newborn offspring with milk. It’s a defining characteristic of what it means to be a mammal.

Detailed explanation-4: -Mammals are vertebrate animals that are endothermic, have hair on their bodies, and produce milk to feed their babies. Many mammals give birth to live young that are small and helpless.

Detailed explanation-5: -Mammals are characterised by the presence of mammary gland and placenta. They produce young one and nourishes them through mammary gland e.g., kangaroo, hedgehog, lion, cat, bat, loris etc.