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Unformatted text preview: feeding devices) o Tetrapods: parts of ear, head, neck in adult • Muscular, post-anal tail: most non-chordates have a digestive tract that extends nearly the full length of the body • Cephalization: the development of a head CQ: Anenomes are: a) Sponges b) Cnidarians c) Molluscs d) Arthropods e) Echinoderms • Organism of the day: vampire fish. o Candiru-vampire fish o Amazon river o Gill parasite of other fish Feeds of blood Erects spine o Dangers of bathing nude Attracted to urine and blood CQ: During what era did the greatest radiation of mammals occur? a) Mesozoic b) Cenozoic c) Paleozoic d) Precambrian e) Neoproterozoic...
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- Spring '07
- nerve cord, Dorsal hollow nerve, bilaterally symmetric protostome, Coors Event Center., iver Gill