All are correct about acoelomates except:
Correct answer: B. Well-developed respiratory system
- A. Sac type digestive system
- B. Well-developed respiratory system
- C. Parenchyma till the body space
- D. Well-developed excretory system
Explanation
Acoelomate includes animals of Phylum Platyhelminthes in which respiratory and circulatory system is absent. Gaseous exchange takes place directly through body surface
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