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Arthropods!

Arthropods!. YAY BUGS. Sorry, Gina…. Defining Characteristics. Bilateral symmetry “Tube plan”/True digestives system/ Protostomes Exoskeleton (from ectoderm) Segmented body w/ jointed appendages Triploblastic c oelemates. How do you remember these!?.

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Arthropods!

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  1. Arthropods! YAY BUGS Sorry, Gina…

  2. Defining Characteristics • Bilateral symmetry • “Tube plan”/True digestives system/Protostomes • Exoskeleton (from ectoderm) • Segmented body w/ jointed appendages • Triploblasticcoelemates

  3. How do you remember these!? • “Arthro” means “joint” in Greek (like arthritis = joint pain), and “pod” is “foot”  jointed legs! • Picture a crab, or a butterfly, or an ant… they’re symmetrical, they eat and poop, they’re hard on the outside, and they have distinct sections to their bodies

  4. …or sing!!! • (sing to the tune of “I’m a Little Teapot”) • Arthropods are insects, crayfish tooSpiders, ticks and scorpions, oo, oo, ooWith exoskeletons and jointed legsThey creep and crawl all over the place…Legs tell the difference, you can seeThe letters in the name tell the legs easilyInsect has 6 and arachnid, 8Crustacean has 10 on the dinner plate!Arthropods are insects, crayfish tooSpiders, ticks and scorpions, oo, oo ,ooWith exoskeletons and jointed legsThey creep and crawl all over the place… • (found at http://www.songsforteaching.com/science/lifesciencebiology/arthropods.php)

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