Which of the following is a property of water?
A) It has a high capacity for heat.
B) It is not a common reactant in metabolic reactions.
C) It is not a good solvent.
D) It is liquid in a very narrow temperature range.
E) It is a nonpolar molecule.
A
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The reaction of ethanol fermentation is: pyruvate + NADH ? ethanol + CO2 + NAD+. Why would a yeast need to perform this reaction in the absence of oxygen?
A. To produce CO2 for respiration. B. To produce NAD+ allowing glycolysis to continue. C. NADH is necessary to reduce pyruvate to lactate. D. To produce NAD+ allowing the electron transport chain to run. E. To consume excess pyruvate that cannot enter the Krebs cycle.
Which of the following would be an expected long-term change during primary succession on glacial moraines? Check all that apply.
_____ increase in species richness _____ decrease in soil depth _____ increase in soil salinity _____ increase in soil nitrogen _____ alder replaced by spruce
The streamlined body shape of many aquatic organisms that swim helps reduce frictional resistance caused by water's high
A) buoyancy. B) viscosity. C) surface tension. D) density.
The aqueous humor ____
a. is in contact with the retina b. supports the lens c. is formed by the vitreous body d. is found between the choroid and retina e. bathes both sides of the lens