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11 Cards in this Set
- Front
- Back
Porifera ex: fan sponges, cup sponges, tube sponges, glass sponges |
-Does not have a mouth or anus -Has no symmetry -Has an internal skeleton (internal spicules: skeletal needles) -Pores on the surface draw in water for filter feeding. Vary in shape |
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Cnidaria ex: Jellyfish, corals, sea anemones |
-Mouth only -Radial Symmetry -Soft skeleton, but hard corals secrete CaCO3 (calcium carbonate) -Tentacles arranged in rings around the mouth, containing stinging cells. (Polyps or Medusae: Jellyfish) |
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Platyhelminths ex: Flatworms, flukes, tapeworms |
-Mouth only -Bilateral Symmetry -Soft, with no skeleton -Flat and thin bodied in the shape of ribbons. No blood system or system for gas exchange. |
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Mollusca ex: bivalves, gastropods, snails, chitons, squid, octopus |
-Mouth and Anus -Bilateral Symmetry -Most have shells made of CaCO3 (calcium carbonate) as their skeleton -A fold in the body wall called the mantle is secretes the shell. A hard rasping radula is used for feeding. |
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Annelida ex: Marine Bristleworms, oligochaetes, leeches |
-Mouth and Anus -Bilateral Symmetry -Internal cavity with fluid under pressure (skeleton) -Bodies made up of many ring-shaped segments, often with bristles. Blood vessels often visible. |
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Arthropoda ex: insects, arachnids, crustaceans, myriapods |
-Mouth and Anus -Bilateral Symmetry -External skeleton made of plates of chitin -Segmented bodies and legs or other appendages with joints between the sections |
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Mammals |
-4 Pentadactyl (having 5 toes or fingers) limbs -Lungs with alveoli (gas exchange) -Internal fertilisation -Give birth to live young -Mammary glands produce/secrete milk -Hairs growing from the skin - Have teeth including living tissue |
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Birds |
-4 Pentadactyl limbs, 2 limbs modified as wings -Lungs with parabronchial tubes -Internal fertilisation -Hard shells around the egg(s) -Feathers growing on skin -Have a beak but no teeth |
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Reptiles |
-4 pentadactyl limbs -Lungs with extensive folding (increases surface area) -Internal fertilisation -Soft shell around eggs -Dry scaly impermeable skin -Simple teeth-no living tissue |
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Amphibians |
-4 pentadactyl limbs -Simple lungs with small internal folds and moist surfaces -External fertilisation in water -Protective jelly around eggs -Larval stage lives in water (offspring) -Soft moist permeable skin |
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Fish |
-Fins (limb(s)) -Gills (gas exchange) -External fertilisation in most species -Scales grow from the skin with a single gill flit -Have swim bladder(s) for buoyancy |
