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11 Cards in this Set
- Front
- Back
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Groups in vertebrates |
Fish, bird, reptiles, amphibians & mammals |
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Invertebrates |
Arthropoda, annelids mollusks & nematodes |
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Features of Arthropods |
- segmented body (head, abdomen, thorax) - hard exoskeleton |
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Features of annelids |
- Segmented body like small tings attached together - no limbs |
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Features of mollusks |
- often covered with hard shell - 3 main parts (muscular foot, visceral mass & mantle) |
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Features of nematodes |
- unsegmented body - tapering (narrowed) at both ends - triploblastic animals (three embryonic cell layers) |
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Groups in Arthropods |
Arachnids, Crustaceans, myriapods & insects |
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Features of Arachnids |
- 8 appendages (legs) - no antennae, claws or wings - Segmented body in 2, cephalothorax (front) and abdomen (back) - in the subphylum chelicerate - ex ~ spiders, scorpions & more
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Features of insects |
- exoskeleton covering the outside body - three main body segments (head, thorax & abdomen) - pair of antennae - three pairs of legs |
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Features of crustaceans |
- exoskeleton - has two compound eyes - two pairs of antennae - 3 segments (head thorax & abdomen) - three pairs of mouthparts - have green glands (principal excretory organs) |
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Features of Myriapods |
- many pairs of legs - two body segments (head & trunk) - a pair of antennae - mandibles (upper jaw) & maxillae (upper jaw) - ex ~ centipedes, millipedes & more |
