Match the morphological structures of a frog in List I with their corresponding locations or functions in List II. List I List II A. Copulatory pad I. Protects eyes while in water B. Webbed digits II. First digit of the forelimb C. Tympanum III. Hindlimbs for swimming D. Nictitating membrane IV. Receives sound signals Choose the correct answer from the options given below:

Step-by-step solution

According to the external morphology of a frog: Copulatory pad is a secondary sexual character found only in male frogs, located on the first digit of the forelimbs. Webbed digits are present on the hindlimbs and help the frog in swimming. Tympanum is a membranous structure located on either side of the eyes that represents the ear and receives sound signals. Nictitating membrane covers the eyes to protect them while the frog is in water. Therefore, the correct match is A-II, B-III, C-IV, D-I. Answer: A-II, B-III,