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5-Animal_Div._II_Verts-34-S08

5-Animal_Div._II_Verts-34-S08 - Animal Diversity II Meet...

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Animal Diversity II Meet the Verts! (Let s see an invertebrate do this!) Animal Diversity II Meet the Verts! (Let s see an invertebrate do this!) Eumetazoa Bilateria, Protostomia, Ecdysozoa Eumetazoa Bilateria, Protostomia , Ecdysozoa Phylum: Arthropoda = jointed appendages Characters: - bilateral, strong cephalic, complete gut - coelom - chitious exoskeleton - well developed nervous system - open circulatory system - complex life histories (larval stages) - sexual reproduction, dioecious Eumetazoa Bilateria, Protostomia, Ecdysozoa Eumetazoa Bilateria, Protostomia , Ecdysozoa Phylum: Arthropoda 4 major subphyla: Subphyla: Trilobita , all extinct Figure 33.27 A trilobite fossil Trilobita Trilobita
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Eumetazoa Bilateria, Protostomia, Ecdysozoa Eumetazoa Bilateria, Protostomia , Ecdysozoa Phylum: Arthropoda 4 major subphyla: Subphyla: Chelicerata (fang-like organs) Class: Arachnida Arachnida 4 paired legs, 2 body parts, Exp/ spiders and horseshoe crabs Figure 33.30x Lycosid spider: female with offspring Arachnida Arachnida Eumetazoa Bilateria, Protostomia, Ecdysozoa Eumetazoa Bilateria, Protostomia , Ecdysozoa Phylum: Arthropoda 4 major subphyla: Subphyla: Uniramia (1 pair of antennae) Class: Insecta Insecta largest group, bugs!, Exp/ flies, butterflies, beetles Class: Diplopoda Diplopoda 2 pairs of legs per segment, herbivorous, Exp/ millipedes Class: Chilopoda Chilopoda 1 pair of legs per segment, carnivorous, Exp/ centipedes Figure 33.32 Insect flight, dragonfly Insecta
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Dipolopoda (millipedes) Dipolopoda (millipedes) Chilopoda (centipedes) (centipedes) Eumetazoa Bilateria, Protostomia, Ecdysozoa Eumetazoa Bilateria, Protostomia , Ecdysozoa Phylum: Arthropoda 4 major subphyla: Subphyla: Crustacea Crustacea , aquatic - sometime considered a class - lobsters, crabs, shrimp, barnacles Figure 33.35 Crustaceans: Lobster (top left), banded coral shrimp (bottom left), barnacles (right) Eumetazoa Bilateria, Dueterostomia Eumetazoa Bilateria, Dueterostomia Phylum: Echinodermata = spiny skinned Characters:
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