OESOPHAGUS STOMACH
ECHINODERMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hollow thin walled tubes that each end in a suction cup
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tube feet
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tentacles
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sand dollar
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sea star
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Explanation:
Detailed explanation-1: -Tube feet are hollow, thin-walled tubes that end in a suction cup. The round, muscular structure called the ampulla (AM pew lah) works something like the bulb of a dropper. Each tube foot works independently of the others, and the animal moves along slowly by alternately pushing out and pulling in its tube feet.
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