MPSC PYQScienceप्राणिशास्त्रenglish
Observe the following statements and choose the option of the correct statement. (a) Polychaetes of class Annelida have open blood circulatory system. (b) Hirudinia animals of class Annelida have closed blood circulatory system.
A.Only (a) is correct
B.Only (b) is correct
C.Both (a) and (b) are correct
D.Both (a) and (b) are incorrect
Correct answer: D