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Complex Animals: Annelids & Arthropods - CrashCourse Biology #23

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Published on Jul 2, 2012

Hank continues our exploration of animal phyla with the more complexly organized annelida and arthropoda, and a biolography on insects.

Crash Course Biology is now available on DVD! http://dft.ba/-8css

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References:
http://www.sciencedaily.com/releases/...
http://tlc.howstuffworks.com/home/ear...
http://annelidsf.blogspot.com/
http://www.bukisa.com/articles/41743_...
http://www.ehow.com/about_6292974_int...

crashcourse, crash course, biology, complex animals, annelid, arthropod, segmentation, evolution, diversity, chordate, vertebrate, ancestor, earthworm, beetle, anatomy, synapomorphy, chaetae, shared traits, trait, plesiomorphy, worm, leech, phyla, class, insect, scorpion, butterfly, lobster, thorax, exoskeleton, chitin, jointed feet, cheliceriformes, arachnid, myriapoda, biolography, pollination, flowering plants, flight, metamorphosis, nymph, pupae, crustacea, shrimp, crab Support CrashCourse on Subbable: http://subbable.com/crashcourse

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