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Animal Terminology

Across
a flexible rod-shaped structure that is found in the embryonic stage of all chordates and in the adult stage of some chordates
the layer of cells that lines the outer surface of an animal
a cell type unique to sponges with a flagellum surrounded by a collar used to maintain water flow through thesponge and capture and digest food particles.
a type of symmetry with multiple planes of symmetry that all cross at an axis through the center of the organism
in some arthropods such as insects a respiratory tube that conducts air from the spiracles to the tissues
a type of carbohydrate that forms the outer skeleton of arthropods such as insects and crustaceans and the cell walls of fungi
a fused head and thorax
an animal that develops from three germ layers
a lipid molecule composed of three fatty acids and a glycerol (triglyceride) that typically exists in a solid form at room temperature; a storage carbohydrate in animals
Down
a specialized stinging cell found in Cnidaria
a free-floating cnidarian body plan with a mouth on the underside and tentacles hanging down from a bell
having separate male and female sexes
a tough nitrogen-containing polysaccharide found in the cuticles of arthropods and the cell walls of fungi
having no plane of symmetry
a type of symmetry in which there is only one plane of symmetry that creates two mirror-image sides
a lined body cavity derived from mesodermal embryonic tissue