Hank discusses the process by which organisms grow and develop, maintaining that, in the end, we're all just tubes. Like CrashCourse on Facebook: www.facebook.com/youtubecrashcourse Follow CrashCourse on Twitter: www.twitter.com/thecrashcourse Table of Contents 1) Zygote 2:38 2) Morula 2:53 3) Blastula 3:25 4) Radial Symmetry 4:11 5) Bilateral Symmetry 4:26 6) Gastrulation 4:52 7) Blastopore 5:02 8) Gastrula 5:17 9) Protostomes & Deuterostomes 5:33 10) Germ Layers 6:22 a) Diploblastic 6:32 b) Triploblastic 6:44 11) Biolography 7:27 References for this episode can be found in the Google document here: bit.ly/IS8lMi animal development, biology, science, crashcourse, animal, classification, phylum, embryo, multi-cellular, sea sponge, symmetry, organs, cells, complexity, tube, life form, tissue, jellyfish, coral, sperm, egg, zygote, morula, blastula, mouth, anus, radial symmetry, bilateral symmetry, digestive tract, gastrulation, gastrula, protostome, deuterostome, chordate, vertebrate, ectoderm, endoderm, germ layer, mesoderm, ernst haeckel, recapitulation theory, ontogeny, phylogeny, evolution, embryology, developmental biology Support CrashCourse on Subbable: subbable.com/crashcourse

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