7. Which of the following have an open circulatory
system?
a) Arthropoda b) Mollusca
c) Annelida d) Cnidaria
1. a and c
2. a and b
3. b and c
4. c and d
Answers
Answered by
0
Answer:
Periplaneta has open circulatory system i.e. the blood does not flow in blood vessels but flows in a haemocoel (body cavity).
Answered by
6
Answer:
2.Mollusca is the answer
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