Which of the following supplies energy for quick bursts of intense activity lasting up to 10 seconds?
a. Phosphocreatine
b. Aerobic glucose breakdown
c. Lactic acid
d. Caffeine
a. Phosphocreatine
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ATP hydrolysis directly powers the movement of _____
A) K+ out of cells B) Na+ out of cells C) Na+ into cells D) Ca++ into cells E) Cl- into cells
If a scientist wanted to determine if a forest environment had been polluted, which of the following groups of organisms typically would be the best indicator for the presence of pollutants?
A. amphibians B. insects C. mammals D. birds E. fish
Which blood cell type is correctly matched to its function?
A. monocytes—defense against microorganisms B. erythrocytes—immunity C. leukocytes—blood clotting D. platelets—hematopoiesis E. leukocytes—oxygen transport
Herbicide resistance and Bt genes from GMO
crops are now commonly found in weeds. This is an example of
a. genetic drift. b. the bottleneck effect. c. gene flow. d. the Red Queen effect. e. disruptive selection.