Term
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Definition
| sponges. Lack true tissues. Cells can disaggregate and aggregate. |
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Term
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Definition
| Hydras, jellies, sea anemones, corals. Diploblastic. Unique stinging structures (cnidae) radially symmetrical. digestive compartment with a single opening. |
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Term
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Definition
| unsegmented acoelomates. digestive compartment with a single opening or no digestive tract. |
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Term
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Definition
| Digestive tube with mouth and anus. jaws in pharynx. head with ciliated crown. |
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Term
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Definition
| Clams, snails, squids. Coelomates with three main body parts: muscular foot, visceral mass, mantle. Most have hard shell made of calcium carbonate. |
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Term
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Definition
| segmented worm. coelomates with segmented body wall and internal organs except digestive tract, which is unsegmented. |
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Term
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Definition
| roundworms. Cylindrical, unsegmented pseudocoelomates with tapered ends. no circulatory system. Molts. |
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Term
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Definition
| Crustaceans, insects, spiders. Coelomates with segmented body, jointed appendages, and exoskeleton made of protein and chitin. |
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Term
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Definition
| Sea stars, sea urchins. Ceolomates with bilaterally symmetrical larvae and five-part body organization as adults; unique water vascular syste. endoskeleton. |
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Term
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Definition
| lancelets, tunicates, vertebrates. Coelomates with notochord dorsal hollow nerve cord. pharyngeal slits. post-anal tail. |
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Term
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Definition
| sea spiders, horseshoe crab, mites, arachnids. Uniramous appendages. Speciallized mouth parts known as chelicerae |
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Term
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Definition
| centipedes, millipedes. uniramous appendages. centipedes are venomous predators. millipedes use cyanide gas for defense. Milipedes have 2 fused segments therefore two pairs of legs per segment. |
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Term
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Definition
| Isopods, crabs, baracles. Biramous appendages. one of the most important food sources in marine and freshwater ecosystems i.e.: krill. |
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Term
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Definition
| insects and their allies. Most diverse group of arthropods. Basal members don't have wings. Key innovations include development of insect wings and modifications in insect mouthparts. |
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Term
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Definition
| Lancelots. tunicates and vertibrata. |
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Term
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Definition
| mamals, amphibians, reptiles, birds, fish |
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Term
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Definition
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Term
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Definition
| lancelets. invertebrates. no head. notochord. |
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Term
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Definition
| Chondrichthyes - sharks and rays, bony fish. Two kinds of bony fish: ray finned, which has a swim bladder and a operculum (gill cover), and lobe finned fish. Internal gills. paired appendages. jaws. single-loop blood circulation. |
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Term
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Definition
| Legs. lungs. cutaneous respiration. pulmonary veins. partially divided heart. |
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Term
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Definition
| Thoracic respiration. Shell or protective scales w/keratin. dry impermeable skin. 2 loop blood circulation. shelled eggs. excrete waste via uric acid. |
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Term
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Definition
| frogs and toads. shorter body. external fertilization. |
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Term
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Definition
| Salamanders. Internal fertilization. long bodies. |
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Term
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Definition
| Chorion. amnion. yolk sac. allantois. albumen. |
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Term
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Definition
| most diverse terrestrial vertebrates. pneumatized bones. no teeth. lack full urinary bladder. two layered skull. large keeled sternum. fusion of bones. 4 chambered heart. efficient oxygen circulation. |
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Term
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Definition
| hair. mammary glands - lactate. large brain relative to body size. differentiated teeth. 3 major groups: marsupials monotremes, and the eutherians. |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| Live birth. Placenta which is rich in blood vessels that transport nutrients to and from baby. |
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Term
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Definition
| Live birth. lactate into a pool. baby lives in "pouch" |
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