MPSC PYQScienceप्राणिशास्त्रenglish
Choose the correct statement from the following. (a) The outer shell of the body of Mollusca is made of calcium carbonate. (b) Mollusca have gills or taenidia for respiration and metanephridia for excretion.
A.Only (a) is correct
B.Only (b) is correct
C.Both (a) and (b) are correct
D.None of these
Correct answer: C