Q. Features common to the animals belonging to class-Amphibia and class-Reptilia are
A) Presence of scales with internal fertilisation and usually four chambered heart
B) Presence of tympanum, poikilotherms and usually three chambered heart
C) Presence of cloaca, oviparous and external fertilisation
D) Skin is moist
Explanation
Class-Amphibia and class-Reptilia share the following features. Presence of tympanum is seen in both classes, which represents the ear. Animals of both classes are cold-blooded or poikilotherms and usually have a three-chambered heart with the exception of a crocodile
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.