A) Hydra
B) Octopus
C) Nereis
D) Ophiolhrix
Correct Answer: D
Solution :
When a blaslopore gives rise to anus this condition is called deuterosiemia. The animals of phylum- Echinodermata to mammals are deuterostomes. Because Ophiolhrix is an echinodermate, in this blastopore gives rise to anus. Hydra, Octopus and Nereis are proiostome animals.
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