Basics-Radial symmetry is primary
-Gastrovascular cavity for digestion -Tentacles for feeding, locomotion, and defense -Contains cnidocytes which shoot out ___nematocysts (stinging cells) -2 body forms: polyp and medusa - Polyp: cylindrical, attaches to a substrate, ______mouth and tentacles upright - Medusa: umbrella, mouth and tentacles facing ______down -Polymorphic, meaning it alternates between ___the medusa and polyp life stages. -Can live in solitary or colonies Tissue Differentiation
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Nervous System
-Nerve Net
-anastomosing network of nerve fibers, mostly in ______epidermis, connects to gastrodermis Skeletal System
-Mesoglea (endoskeleton)
-Calcium carbonate, chitin (exoskeleton) Digestive System
-Gastrovascular cavity: nutritive - muscle, enzymatic.
-All cindarians are carnivorous Reproduction and Development
-Asexual budding of polyps
-Sexual reproduction -Dioecious, gametes produced from interstital -Cells of walls of epidermis/gastrodermis -Life cycles variable and complex (embryo to planula to polyp/medusa) |