BIOL 2200 Final Exam Questions and Verified Answers | Passed | A+
A fish is excreting large volumes of water; we would describe it as ______________________ relative to its environment. : An osmoregulator that is hyperosmotic. Which of the following animals likely makes the most nitrogenous waste? A. Frugivorous Bat B. Insectivorous Frog C. Piscivorous Seal D. Granivorous Bird : C. Piscivorous Seal Which of the following statements about mammalian excretion if FALSE: A. Substances like solutes always diffuse across the nephron membrane, with direction based on differences in the concentration gradient B. Whenever water is diffusing out of nephron, solutes are diffusing in C. Water resorption happens at every stage of the process, making the waste more and more concentrated 2 D. A & B E. A, B, and C : E. A, B, and C The advantage of excreting nitrogenous wastes as urea rather than as ammonia is that ________. : Urea is less toxic than ammonia Uric acid is the _______________ toxic form of nitrogenous waste, has a very _____________ water loss, and a very _____________________ energy expenditure. : Least Low High Ammonia is likely to be the primary form of nitrogenous waste in an environment with a mass abundance of _______________. : Water
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