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No, sponges do not have eyes. In fact, they don't have any organs at all. Sponges are among the simplest forms of multicellular life. They have simple tissues made up of different cell types, and some have support structures called spicules, but none have any of the true organs or organ systems that we see in more advanced organisms.

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16y ago
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14y ago

Echinoderms are characterized by radial symmetry, several arms (5 or more, mostly grouped 2 left - 1 middle - 2 right) radiating from a central body (= pentamerous). The body actually consists of five equal segments, each containing a duplicate set of various internal organs. They have no heart, brain, nor eyes, but some brittle stars seem to have light sensitive parts on their arms. Their mouth is situated on the underside and their anus on top (except feather stars, sea cucumbers and some urchins).

Echinoderms have tentacle-like structures called tube feet with suction pads situated at their extremities. These tube feet are hydraulically controlled by a remarkable vascular system. This system supplies water through canals of small muscular tubes to the tube feet (= ambulacral feet). As the tube feet press against a moving object, water is withdrawn from them, resulting in a suction effect. When water returns to the canals, suction is released. The resulting locomotion is generally very slow

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13y ago

yes a sea star has eyes one on the end of each arm

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13y ago

they do not, they pretty much just swallow what they eat, because they only eat small particles

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9y ago

cheese so you gotta eat the booty like groceries.

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13y ago

No, sea anemones do not have eyes.

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Q: Do sea anemones have eyes
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