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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 |