Midterm IIKEY.pdf - BIOLOGY 560 MIDTERM EXAM II KEY SUMMER 2017 1 Evaginated respiratory surfaces appear in which of the following animal groups a fish

Midterm IIKEY.pdf - BIOLOGY 560 MIDTERM EXAM II KEY SUMMER...

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BIOLOGY 560 MIDTERM EXAM II KEY SUMMER 2017 1 . Evaginated respiratory surfaces appear in which of the following animal groups? a. fish b. lizards c. protozoa d. insects 2 . All of the following are challenges for water breathers, except: a. water has a higher viscosity b. oxygen diffuses rapidly in water c. oxygen is relatively water-insoluble d. oxygen levels fluctuate in aquatic environments 3 . During gill ventilation in teleosts: a. water passes through the gills into the buccal cavity b. high pressure forces water from the opercular cavity into the buccal cavity c. water enters through the mouth and is pulled across the buccal cavity into the opercular cavity via a suction pump d. none of the above are true 4 . Avian respiration has several adaptive strategies including: a. unidirectional flow b. extraction of oxygen during both inspiration and expiration for two cycles c. crosscurrent exchange d. all of the above are strategies 5 . Transport of oxygen directly from the air to the tissues (bypassing circulatory system) is characteristic of: a. insect tracheoles b. bird parabronchi c. amphibian lungs d. mammalian alveoli 6 . Characteristics of an effective respiratory surface include all of the following, except: a. thin exchange surface b. close proximity to blood vessels c. large surface area d. all of the above are characteristics
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