Read the following statements regarding the members of Class Reptilia: (i) They are mostly terrestrial animals and their body is covered by dry and cornified skin, epidermal scales or scutes. (ii) They do not have external ear openings; the tympanum represents the ear. (iii) The heart is usually three-chambered, but four-chambered in crocodiles. (iv) Fertilisation is internal, they are oviparous and development is in

Step-by-step solution

Statement (i) is correct. Reptiles are mostly terrestrial animals and their body is covered by dry and cornified skin, epidermal scales or scutes. Statement (ii) is correct. Reptiles do not have external ear openings; the tympanum represents the ear. Statement (iii) is correct. The heart is usually three-chambered in reptiles, but crocodiles are an exception and have a four-chambered heart. Statement (iv) is incorrect. While fertilisation is internal and they are oviparous, development in reptiles is direct, meanin