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2-5-08 notes - feeding devices o Tetrapods parts of ear...

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February 5, 2008 Exam 1: Monday, February 11 th , 6:30 pm. Coors Event Center. 1.5 hours. 50 questions (multiple choice) CQ: Which of the following species would NOT be considered a bilaterally symmetric Protostome coelomates? A) Sea urchin B) Octopus C) Hookworm D) B and c E) All of the above Notochord: a longitudinal, flexible rod located between the nerve cord and the digestive tube o Skeletal support (in organisms retaining it) o In humans: the disks between our vertebrae Dorsal hollow nerve cord: develops from plate of embryonic ectoderm that rolls into a tube o Other animal phyla with nerve cords have solid ones that are usually ventrally located Pharyngeal clefts: a series of pouches separated by grooves along sides of pharynx (all embryos) o May develop into slits that open to outside of body (gills or suspension
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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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2-5-08 notes - feeding devices o Tetrapods parts of ear...

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