Chapter 42 Key Terms
- p. 910: nerve cord, notochord, pharyngeal slits, pharynx, endostyle
- p. 911: tunic
- p. 912: vertebrae (singular, vertebra)
- p. 914: tetrapods
- p. 917: ossification
- p. 919: gills, backbone, single-loop blood circulation, nutritional deficiencies, swim bladder, lateral line system
- p. 920: operculum
- p. 924: metamorphosis
- p. 925: pelycosaurs
- p. 926: therapsids, thecodonts, bipedal, dinosaurs
- p. 927: Rhynchocephalonts, crocodiles
- p. 930: chorion, amnion, allantois, internal fertilization, endothermy, ectothermy, homeothermy, poikilothermy
- p. 940: diaphragm, placenta
- p. 943: monotremes
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