OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The water vascular system, which is attached to tube feet help these organisms in many ways.
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Annelida
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Arthropoda
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Echinodermata
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Mollusca
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Explanation:
Detailed explanation-1: -The water vascular system is a hydraulic system used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. The system is composed of canals connecting numerous tube feet.
Detailed explanation-2: -Water vascular system is a unique characteristic of echinoderms. It helps in locomotion, the capture of food and respiration.
Detailed explanation-3: -Sea stars have a water vascular system and tube feet much like those of the sea urchins. Ambulacral grooves (from the Latin root ambul meaning walk) are narrow channels in the oral surface of a sea star filled with tube feet. The tube feet are used mainly for grabbing and locomotion.
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