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10 Cards in this Set
- Front
- Back
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Class Agnatha
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-"Jawless Fishes" -12-7 gill slits -two chambered heart (cold-blooded) -made of cartilage -Lampreys and Hagfish |
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Class Chondrichthyes
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-gill has been modified to form a lower jaw -made of cartilage -pectoral and pelvic fins -6 gill slits -two chambered heart (cold-blooded) -Sharks and rays |
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Class Osteichthyes
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-Made of bone -Pectoral and pelvic fins -6 gill slits covered by a operculum (bony) plate -two chambered heart (cold-blooded) -Leafy Dragon, Tiger Rockfish, Salmon, Cod |
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Class Amphibia
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-evolved from devonian time period -terrestrial as adults but return to water to reproduce -made of bone -use external gills as larvae and lungs as adults -pectoral and pelvic fins -scaleless skin -three chambered heart (cold-blooded) -Salamanders, frogs, toads, apoda |
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Class Reptila
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-made of bone -joints rotated inwards to increase efficiency -three and a half chambered heart (cold-blooded) -uses lungs to exchange gases -bony scales -amniotic egg allows reproduction on land by providing an artificial pond environment for the embryo -Lizards, alligators, crocodiles, turtles and snakes |
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Class Aves
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-made of hollow bone -four chambered heart (warm-blooded) -reptile scales modified to form feathers and pectoral appendages modified to form wings -Amniotic egg surrounded by a hard light weight shell -Birds (ducks, hawks, sparrows, owls and penguins) |
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Class Mammalia
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-four chambered hearts (warm-blooded) -differentiated teeth -scales evolved to form hair -feed their young with milk from mammary glands -mammals (mice, horse, deer, cats, dogs, monkeys, bats, whales, etc.) -has three sub-classes |
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sub-class monotremata
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-eggs are laid in underground den -only in australia and new zealand -Platypus and anteaters |
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sub-class marsuplia
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-Kangaroo, wombat -australia -born prematurely as fetuses and must make their way into an external pouch until fully developed |
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sub-class eutheria
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-Rhino, dolphin, tiger -young are kept in womb for a full gestation period until fully developed -maintained by the placenta |
