Compared with birds, amphibians have a \_\_\_\_\_ maximum resistance to and a \_\_\_\_\_ maximum tolerance for water loss. higher; comparable higher; lower higher; higher lower; higher
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Birds are endothermic vertebrates that are adapted to terrestrial habitats. Show more…
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Question 13 In a tropical habitat; mamma or bird species is more likely to have a basal metabolic rate compared to an arctic species, and less need for lower; hibernation higher; panting lower; sweating higher, antifreeze compounds
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Oxygen exchange (acquisition) in aquatic organisms is limited by diffusion rate and oxygen content, especially in water temperatures: A. low; low; lower B. low; low; higher C. high; high; higher D. low; high; higher E. high; low; lower
Q28 A. How does a swim bladder help the ray-finned fishes maintain buoyancy? A Gas is added to the bladder as the fish's depth increases. B It removes oxygen from the water and stores it. C It removes water from the digestive tract. D It adds and removes salt from the water stored in the bladder, which changes its density and thus its buoyancy. E Gas is removed from the bladder as the fish's depth increases. Q32. Which pair do you predict would have the largest difference in mass-specific basal metabolic rate? A Lion and cat B Dog and cat C Cat and mouse D Lion and dog Q37. If a mouse has a mass-specific metabolic rate that is 10 times higher than an elephant, what does that tell you about food needs of a mouse? A Mice and elephants eat the same amount of food when you account for body size. B Relative to body mass, mice will eat much more food per day. C Mice sleep more so require less food. D Relative to body mass, mice will eat less food than elephants. Q38 Why do salmon rely increasingly on gills for respiration as they get larger? A Gills only work in small fishes. B Salmon live in oxygen-rich water and therefore require gills for respiration. C As the surface-area-to-volume ratio drops with growth, salmon require an adaptation with increased surface area to permit them to acquire adequate oxygen from the environment. D The skin of salmon becomes increasingly impermeable to oxygen. Q41A Compared to ectotherms, endothermic animals are likely to be at the greatest disadvantage in ________. A environments with variable and limited food sources B very cold environments C environments with a constant food source D very hot environments
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