Question

How many of the examples mentioned below posses closed (C) and open (O) circulatory system?
Q. 14
Cephalopod molluscs, non-cephalopod molluscs, Chordates, Annelids, Tunicates,
Hemichordates and Arthropods
1) O C = 2,0 = 5
2)
C = 3, O = 4
3)
C = 5, O = 2
4)C = 4.0 = 3​

Answer 1

Answer:

option 4 is right .......