Question

Animal classification is depicted below. Mark the correct option.

• A. A-Limbs, B-Egg with amnion membrane, C-Milk, hair, D-Feathers
• B. A-Egg with amnion membrane, B-Milk, hair, C-Limbs, D-Feathers
• C. A-Swim bladder, B-Limbs, C-Milk, hair, D-Feathers
• D. A-Milk, hair, B-Limbs, C-Egg with Amnion membrane, D-Feathers.

Answer 1

Answer: (B)

A-Egg with amnion membrane, B-Milk, hair, C-Limbs, D-Feathers

During embryonic development, in reptiles, birds and mammals, embryo forms four membranes called embryonic membranes, chorion, amnion, allantois and yolk sac. Due to their occurrence, reptiles, birds and mammals are called amniotes. Fishes and amphibians do not have these membranes, hence they are called anamniotes. Milk producing mammary glands and hair are the characteristic features of mammals, whereas feather is of birds.