(1) Arthropods

(1) Arthropods - Phylum Arthropoda Arthropods have freely...

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Phylum Arthropoda Phylum Arthropoda Arthropods have freely movable jointed appendages Very successful due to many characteristics
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Arthropods Arthropods Versatile Exoskeleton - highly protective + mobile 1 pr appendages/segment Growth by molting (ecdysis) Well developed Organ Systems Digestive System - suspension feeders, predators, scavengers, herbivores Foregut, Midgut, Hindgut; 2 Part stomach (Gastric mill) Variety of respiratory organs Gills, Book lungs, Tracheal System Excretion - Green gland, Malpighian tubules Open Circulatory system Separate Sexes; Metamorphosis
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Shrimp, lobsters, crayfish, crabs, barnacles - 45,000 spp. Thorax bears five pairs of walking legs (biramous) - 1st pr = Chelipeds Head and thorax fused into cephalothorax - Covered by nonsegmented carapace - 2 prs. Antennae - 1 pr. Compound eyes - Abdominal segments with swimmerets; tail = uropods, Respiratory system - gills Arthropods - Crustaceans Arthropods - Crustaceans
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Crustacean Diversity Crustacean Diversity
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This note was uploaded on 04/07/2008 for the course BIO 103 taught by Professor Potts-santone during the Spring '07 term at Northeastern.

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(1) Arthropods - Phylum Arthropoda Arthropods have freely...

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