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Animal Kingdom
| Term | Definition |
|---|---|
| Animal Kingdom | eukaryotic, multicellular, no cell walls, heterotrophic, |
| asymmetry | no shape |
| radial symmetry | body parts arranged around a central axis, like a wheel |
| bilateral symmetry | body has a right and a left half that mirror images of each other |
| Phylum Porifera | asymmetrical, sessile (attached), pores for filter feeding |
| Ex. Sponges | Phylum Porifera |
| Phylum Cnidaria | radial symmetry, nematocysts (stinging cells), 2 body forms (polyp and medusa), 1 opening on digestive system |
| Ex. hydra, jellyfish, corals, sea anemones | Phylum Cnidaria |
| Phylum Platyhelminthes | bilateral symmetry, complete digestive system with 2 openings, parasitic, flattened body |
| Ex. planaria, flukes, tapeworms, flatworms | Phlyum Platyhelminthes |
| Phylum Nematoda | bilateral symmetry, cylindrical body, parasitic, complete digestive system |
| Ex. hookworms, pinworms, round worms | Phylum Nematoda |
| Phylum Annelida | complete digestive system, closed circulatory system, segmented (divided) internally and externally, hermaphrodites |
| Ex. earthworms, leeches, segmented worms | Phylum Annelida |
| Phylum Mollusca | bilateral symmetry, soft body with hard, protective shell on most, complete digestive system, open circulatory system |
| Ex. snails, slugs, squid, octopi, clams, oysters | Phylum Mollusca |
| Phylum Arthropoda | bilateral symmetry, jointed legs, exoskeleton of chitin, complex body systems, most diverse phylum, class arachnida, crustacea, myriapoda, insecta |
| Ex. spiders, crabs, shrimps, centipedes, grasshoppers, bees, jointed legs | Phylum Arthropoda |
| Phylum Echinodermata | spiny skin, radial symmetry as an adult, endoskeleton of calcium plates, complete digestive system, water vascular system |
| Ex. sea stars, sea urchins, sand dollars | Phylum Echinodermata |
| Phylum Chordata-Subphylum Invertebrates | notochord, no backbone, bilateral symmetry, gill silts, |
| Ex. sea squirts, lancelets | Phylum Chordata-Subphylum Invertebrates |
| Phylum Chordata-Subphylum Vertebrates | notochord, backbone, bilateral symmetry, closed circulatory system, most complex animals, amphibians, fish, aves, reptilia, mammalia |
| Ex. frogs, shark, snakes, lizards, birds, dogs, whales, humans | Phylum Chordata-subphylum vertebrates |