An organism that oxidizes H2S to gain energy and utilizes CO2 as a carbon source (to generate carbohydrates) would be classified as a:
A. photoautotroph.
B. chemoautotroph.
C. photoheterotroph.
D. chemoheterotroph.
B
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Shortly after ingesting a big plate of carbohydrate-rich pasta, you measure your blood's hormone levels. What results would you expect, compared to before the meal?
A) high insulin, low glucagon B) low insulin, low glucagon C) high insulin, high glucagon D) low insulin, high glucagon E) low insulin, no change in glucagon
This STD is linked to cervical cancer
A) HPV infection B) syphilis C) gonorrhea D) CMV infection
Which plant is the most fit?
A) a plant with deep roots B) a plant with large leaves C) a plant with large flowers D) Environmental information is required to determine fitness.
The "one-gene/one-enzyme" hypothesis was proposed by
A. Beadle and Tatum. B. Watson and Crick. C. Garrod. D. Franklin. E. Griffith.