Which of the following represents the largest anthropogenic source of sulfur released to the atmosphere?
A) fixation for agricultural fertilizer
B) burning of fossil fuels
C) trash-burning incinerators
D) biomass burning
B
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What functions are performed by lipids? a. They are used for energy storage and as components of various cellularstructures
b. They are used for speeding up chemical reactions in the cell. c. They are used for defense against invading pathogens in the cell. d. They are used for transport of other molecules.
The benefits of aerobic exercise include all of the following EXCEPT an ____
a. increased number of mitochondria b. increased blood supply c. increased supply of myoglobin d. increased number of fibers in a motor unit e. increased activity of lipoprotein lipase
During the cell cycle, the cell goes through a stage called "G." In this case, "G" stands for
a. gap. b. goal. c. gad. d. glad. e. game.
Pseudomonas bacteria colonized the bile duct of a patient following his liver transplant surgery. This is an example of a
A) communicable disease. B) latent infection. C) nosocomial infection. D) sporadic disease. E) None of the answers is correct.