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Question : Which group of animals are named because of their spiny skin and a peculiar water-driven tube system that they use for moving around?

Option 1: Hemichordata

Option 2: Aschelminthes

Option 3: Echinodermata

Option 4: Mollusca


Team Careers360 22nd Jan, 2024
Answer (1)
Team Careers360 23rd Jan, 2024

Correct Answer: Echinodermata


Solution : The correct answer is Echinodermata.

Echinoderms are invertebrates with spiny skin, a water circulatory system, and a primitive nervous system. They have a distinct water circulatory system that includes tube feet that enable slow but strong movement. Water circulates via the water vascular system of an echinoderm, which is composed of a central ring of canals that spreads along each arm for gaseous exchange and nourishment.

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