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Unformatted text preview: Epidermal cells are termed epitheliomuscular cells and contain muscle fibers. Cnidocytes and sensory cells are also present in the epidermis. Interstitial cells can produce an ovary or testis , and may assist regeneration. Gland cells secrete digestive juices into the gastrovascular cavity into which tentacles have stuffed captured prey. Digestion is completed within food vacuoles of nutritive-muscular cells. Nutrients diffuse to the rest of the body. Hydras reproduce both sexually asexually (by budding). In sexual reproduction, sperm from a testis swim to an egg within an ovary. Following early development within the ovary, a protective shell forms and allows the embryo to survive until conditions are optimum. Hydra are commonly utilized animals in biology labs....
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- Fall '10