A) Hydra and Aurelia
B) Taenia and Ascaris
C) Cockroach and Pi/a
D) Balanoglossus and Herdmania
Correct Answer: C
Solution :
Haemocoel is a cavity formed by combination of many sinuses and Filled with haemolymph. in which the viscera are embedded as in cockroach. So, in cockroach open type of blood vascular system is present. This cavity ie. haemocoel is present in members of phylum-Arthropoda like cockroach and phylum-Mollusca like Pila.
You need to login to perform this action.
You will be redirected in
3 sec
