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Life 103 Lab week 6

by: Devrrae Russell

Life 103 Lab week 6 LIFE 103

Devrrae Russell

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About this Document

These notes cover Arthropods and Echinoderms
Biology of Organisms Lab
Donna Weedman
Class Notes
Arthropoda, Echinodermata, spider, lobster, squid, star, Fish
25 ?




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This 3 page Class Notes was uploaded by Devrrae Russell on Tuesday October 4, 2016. The Class Notes belongs to LIFE 103 at Colorado State University taught by Donna Weedman in Fall 2016. Since its upload, it has received 2 views. For similar materials see Biology of Organisms Lab in Biology at Colorado State University.


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Date Created: 10/04/16
September 28, 2016 Arthropoda Subphylum Subphylum Subphylum Subphylum Subphylum chelicerata crustacea myriapoda myriapoda hexapoda Class Class Class insecta chilopoda diplopoda Name meaning Jointed foot Jointed foot Jointed foot Jointed foot Jointed foot examples Mites Crabs centipedes millipedes Hymenoptera- tics Lobster bees spider, Crayfish Diptera-flies horseshoe Lepidoptera- crab butterflies moths Coleoptera- beetles Support exoskeleton exoskeleton exoskeleton exoskeleton exoskeleton system Nervous cephalization cephalization cephalization cephalization cephalization system Digestion Complete gut Complete gut Complete gut Complete gut Complete gut Circulation open open open open open Excretion Malpighian Green glands Malpighian Malpighian Malpighian tubules tubules tubules tubules Respiration Book lungs gills Spiracles Spiracles Spiracles Trachea Trachea Specialized Chelicerae Chelipeds- Poison claw none wings appendages (fangs claws (venomous) Swimmerets-f pinchers) eeding Telson-movem ent Uropods- steering # of pairs of 0 2 1 1 1 antennae # of walking 8 10 2 per 4 per 6 legs segment segment # of body 2 2 2 2 3 regions Cephalothorax Abdomen Head Head Head Abdomen cephalothorax body body Thorax abdomen Echinodermata Name meaning Spiny skin classes Asteroidea - sea star Ophiuroidea - brittle star and basket star Holothuroidea - sea cucumber Echinoidea - sea urchin and sand dollar Adult symmetry Penta-radial symmetry Larvae symmetry Bilateral symmetry Body cavity Ceolum Support system Endoskeleton -spines -ossicles Nervous system Central nerve ring and radial nerves Locomotion / Circulation Water vascular system Digestion Complete gut - external digestion Excretion Gills Respiration gills


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