What is a polyp body form?

The polyp body form is a cylindrical, sessile stage found in certain cnidarians, such as hydras and sea anemones. It typically has a mouth at the top surrounded by tentacles, which are used for feeding and defense. Polyps are usually anchored to a substrate and can reproduce asexually, often by budding. This form contrasts with the medusa stage, which is free-swimming and often bell-shaped.