Phylum Arthropoda notes - Fall 2007

Phylum Arthropoda notes - Fall 2007 - -Know this...

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Survey of the Animal Kingdom: Phylum Arthropoda Phylum Arthropoda – arthropods - Paired, jointed appendages (arthro=joint, poda = foot) – used for locomotion, feeding, reproduction, defense, senses - Exoskeleton made of chitin – functions: protection, prevents desiccation, attachment point for muscles - Bodies are segmented into distinct regions = tagmata (e.g., head, thorax, abdomen) - True coelom with open circulatory system - Highly developed organ systems - Exoskeleton is shed periodically = ecdysis, or molting - Live in all major habitats - Largest phylum of animals in terms of species diversity
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Unformatted text preview: -Know this classification scheme: o Subphylum Chelicerata (no antennae, have chelicerae) Class Merostomata – horseshoe crabs Class Arachnida – spiders, scorpions, ticks, mites, daddy longlegs o Subphylum Crustacea (2 pair of antennae, have mandibles) Examples: crayfish, crabs, shrimp, lobster, copepods, Daphnia o Subphylum Uniramia (1 pair of antennae, have mandibles) Class Insecta – insects Class Chilopoda – centipedes Class Diplopoda – millipedes...
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This note was uploaded on 04/09/2008 for the course BIOL 111L taught by Professor Garanich during the Spring '08 term at St. Francis PA.

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