Question

Water vascular system is found in ____
A) hydra B) earthworm c) starfish d) ascaris


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Answer 1

Answer:

(d) ascaris

Explanation:

Echinodermata. The water-vascular system, which functions in the movement of tube feet, is a characteristic feature of echinoderms, and evidence of its existence has been found in even the oldest fossil forms. It comprises an internal hydraulic system of canals and reservoirs containing a…