Tube feet are the characteristic structures of (1)Star fish (2)Jelly fish (3)Devil fish (4)Cuttle fish
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Answer:
The correct option is 1. Starfish.
Explanation:
- Tube feet, or podia in scientific parlance, are tiny active tubular projections on the oral face of an echinoderm, such as the arms of a starfish or the undersides of sea urchins, sand dollars, and sea cucumbers; they are more subdued, though present, on brittle stars, and only serve a feeding purpose in feather stars.
- Rows of flexible protrusions known as tube feet are found on the bottom of starfish. As water is injected into the tube feet, they are thin tubes that stretch. The starfish's epidermis has a sieve plate that allows water to enter, and its muscles force water into each tube foot.
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