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Arthropods part 2 Crustaceans arachnids Centipedes millipedes
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Monday November 10, 2014 Agenda-arthropods Besides insects, what are the other groups of arthropods?
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crustaceans Examples Body sections Crabs, lobster, crayfish, shrimp 2 or 3; each body section has a pair of legs or other appendage
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Crustacean appendages Swimmerets Walking legs Used like flippers for swimming Used to crawl
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Crustacean appendages Cheliped Large antenna Used to capture food and to defend itself Used to smell, taste and touch
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Crustacean appendages Small antenna Have sense organs for taste, touch, and balance
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crustaceans crab ‘
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crustaceans lobster ‘
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crustaceans crayfish ‘
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crustaceans shrimp ‘
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color Crab-red Grasshopper- green Fly-pencil Crayfish-brown
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Now work on Safety poster Start answering questions (use your book or notes to help you)
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Wednesday November 12, 2014 Agenda-worm dissection Everything off desks Choose jobs Write name/job on chart paper JOBS Get supplies Return supplies Trash Clean table
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Thursday November 13, 2014 Agenda-arachnids Warm up-What are some thoughts about yesterday’s dissection?
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arachnids Body sections? 2 First section is head/midsection Hind (rear) section is abdomen (reproductive organs & part of digestive system)
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arachnids Legs? Antennae? 4 pairs (8) none
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arachnids spiders Predators Eat insects Hollow fangs Insert venom into prey Venom turns prey’s tissue to mush Fangs are used like a straw to suck in food
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arachnids Spider bites Rarely bite people Bites can be painful Brown recluse & black widow bites are dangerous-go to doctor
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Black widow spider
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Brown recluse spider
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webs
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web
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Other arachnids mites
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Other arachnids ticks
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Other arachnids scorpions
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arthropod handout #13, 14, 15 Color R-brown
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Spider Web Challenge How fast can your team build a realistic spider web using one container of dental floss? Materials (per team) One container of dental floss Scissors Glue Sheet of black paper
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Friday November 14, 2014 Agenda- centipedes/milli pedes Were you successful in the spider web challenge? Why or why not?
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centipedes Body sections? 2 Head-one pair of antennae Abdomen with many segments
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centipedes Legs? One pair of legs on each segment Many have more than 100 segments so they may have more than 200 legs.
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centipedes
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millipedes Body sections? 2 Head-one pair of antennae Abdomen with many segments (just like centipedes)
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millipedes Legs? 2 pairs of legs on each segment Many have more than 80 segments, so they may have more than 320 legs
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millipedes
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