The sessile, vase-shaped body form seen in cnidarians is called a what?

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Multiple Choice

The sessile, vase-shaped body form seen in cnidarians is called a what?

Explanation:
Cnidarians have two basic body forms: a polyp and a medusa. The sessile, vase-shaped form is the polyp. It is attached to a surface, with the mouth and tentacles at the top, often feeding upward. This form is common in hydras, sea anemones, and many corals, which may reproduce asexually by budding and, in some groups, alternate with a swimming medusa stage. The other options refer to organisms outside this group—segmented worms (polychaetes), sponges (poriferans), and reptiles (reptilia)—so they don’t describe the cnidarian body plan in question.

Cnidarians have two basic body forms: a polyp and a medusa. The sessile, vase-shaped form is the polyp. It is attached to a surface, with the mouth and tentacles at the top, often feeding upward. This form is common in hydras, sea anemones, and many corals, which may reproduce asexually by budding and, in some groups, alternate with a swimming medusa stage. The other options refer to organisms outside this group—segmented worms (polychaetes), sponges (poriferans), and reptiles (reptilia)—so they don’t describe the cnidarian body plan in question.

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