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Unformatted text preview: (which the mammal kidney is essential for). 18. 1, 9, 4, 10, 8, 6, 7, 5, 3, 2, 1 19. The advantage is that the animals with these hearts could bypass the pulmonary circuit and keep circulating blood underwater to maximize the use of oxygen. 20. f, j, g, a, k, c, l, i, e, d 21. from lower left corner (stimulus) up and around: stimulus- hill; receptor- speedometer (ONLY a place); signal- speed is slowing; control center is driver (ONLY); signal- tell foot to step on gas pedal; effector- pedal (ONLY a place); response- increases speed; homeostasis could be maintaining a constant speed. Several variations on this were accepted, but all boxes and lines had to be described for this situation and some with only one word....
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- Spring '10
- Phagocytosis, Gill, e. proximal tubule, Amphibian heart Respiration, autoimmune d. thermoregulation, innate b. tropic