NEET BIOLOGY

Detailed explanation-1: -An Introduction. Aves are a class of endothermic vertebrates, commonly known as birds. These animals fall under the phylum Chordata carrying specific features such as toothless jaws with beak, laying of eggs with a hard shell, etc.

Detailed explanation-2: -Birds are warm blooded and lay eggs. Most have feathers and can fly.

Detailed explanation-3: -Birds and fish are not the only animals that lay eggs. Insects, turtles, lizards, and reptiles lay eggs, too. Only two mammals lay eggs: the platypus and the echidna. All other mammals give birth to live babies.

Detailed explanation-4: -Amphibians, snakes, and fish lay eggs. Reptiles including lizards, turtle, crocodile etc. also lay eggs. Monotremes are mammals that lay eggs; including the Echidna or spiny anteater, and the Platypus.

Detailed explanation-5: -Oviparous animals are those that lay eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, reptiles, all birds, and the monotremes.