| I. | Eyes are bulged out and covered by a nictitating membrane that protects them while in water |
| II. | On either side of the eyes a membranous tympanum (ear) receives sound signals |
| III. | The forelimbs and hind limbs help in swimming, walking, leaping and burrowing |
| IV. | The hind limbs end in five digits and they are larger and muscular than fore limbs that end in four digits |
| V. | Feet have webbed digits that help in swimming |
| VI. | Frogs exhibit sexual dimorphism |
| I. | In frog, cutaneous and pulmonary respiration are found |
| II. | A pair of elongated pink hollow lungs are found in thorax |
| III. | Atmospheric O2 → Nostril → Buccal cavity → Lungs |
| IV. | During aestivation and hibernation, gaseous exchange take place through skin. |