Which system is more developed in acoelomates?
Correct answer: A. Excretory system
- A. Excretory system
- B. Respiratory system
- C. Digestive system
- D. Osmoregulatory system
Explanation
Acoelomate has sac type digestive system, no respiratory and osmoregulatory systems. They have tubular excretory system called protonephridia having flame cells.
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