Which of the following animals generally has the lowest volume of urine production?
A) a vampire bat
B) a salmon in fresh water
C) a marine bony fish
D) a shark inhabiting the Mississippi River
C
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Sodium concentrations are higher outside and glucose concentrations are higher inside the cell. Using the same membrane protein for Na+ and glucose transport, what is it called when a Na+ electrochemical gradient is used to drive glucose transport into the cell against its concentration gradient?
A. primary active transport B. secondary active transport C. primary facilitated diffusion D. secondary facilitated diffusion E. passive diffusion
What structure transports blood away from a kidney?
Assuming resting conditions at sea level, what is the partial pressure of oxygen in systemic arteries?
A) 46mmHg B) 100mmHg C) 80 mm Hg D) 40 mm Hg E) 160 mm Hg
Phagocytosis is the main function of what two types of human white blood cells?
a. Macrophages and T lymphocytes b. Platelets and neutrophils c. Macrophages and neutrophils d. Eosinophils and T lymphocytes