Arthropods part 2 Crustaceans arachnids Centipedes millipedes
Monday November 10, 2014 Agenda-arthropods Besides insects, what are the other groups of arthropods?
crustaceans Examples Body sections Crabs, lobster, crayfish, shrimp 2 or 3; each body section has a pair of legs or other appendage
Crustacean appendages Swimmerets Walking legs Used like flippers for swimming Used to crawl
Crustacean appendages Cheliped Large antenna Used to capture food and to defend itself Used to smell, taste and touch
Crustacean appendages Small antenna Have sense organs for taste, touch, and balance
crustaceans crab ‘
crustaceans lobster ‘
crustaceans crayfish ‘
crustaceans shrimp ‘
color Crab-red Grasshopper- green Fly-pencil Crayfish-brown
Now work on Safety poster Start answering questions (use your book or notes to help you)
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
Thursday November 13, 2014 Agenda-arachnids Warm up-What are some thoughts about yesterday’s dissection?
arachnids Body sections? 2 First section is head/midsection Hind (rear) section is abdomen (reproductive organs & part of digestive system)
arachnids Legs? Antennae? 4 pairs (8) none
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
arachnids Spider bites Rarely bite people Bites can be painful Brown recluse & black widow bites are dangerous-go to doctor
Black widow spider
Brown recluse spider
webs
web
Other arachnids mites
Other arachnids ticks
Other arachnids scorpions
arthropod handout #13, 14, 15 Color R-brown
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
Friday November 14, 2014 Agenda- centipedes/milli pedes Were you successful in the spider web challenge? Why or why not?
centipedes Body sections? 2 Head-one pair of antennae Abdomen with many segments
centipedes Legs? One pair of legs on each segment Many have more than 100 segments so they may have more than 200 legs.
centipedes
millipedes Body sections? 2 Head-one pair of antennae Abdomen with many segments (just like centipedes)
millipedes Legs? 2 pairs of legs on each segment Many have more than 80 segments, so they may have more than 320 legs
millipedes