Bacteria that produce nitrite ( NO2? ) during anaerobic respiration would use ________ as their final electron acceptor.
A. N2
B. N2O
C. O2
D. NO3?
Answer: D
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In a population of Mendel's garden peas, the frequency of the A allele (p) is 30% and the frequency of the a allele (q) is 70%. Of 100 plants, 28 are AA, 4 are Aa, and 68 are aa. Is the population in Hardy-Weinberg equilibrium? How can you tell?
What will be an ideal response?
The placental mammalian counterpart of
Australia’s spiny anteater is the a. Tasmanian devil. b. aardvark. c. giant anteater. d. woolly lemur. e. aardvark and giant anteater.
If a bacterial cell is placed into a hypertonic solution, then
A) Water will move into the cell and the cell will shrink B) Water will move into the cell and the cell will expand C) Water will move out of the cell and the cell will shrink D) Water will move out of the cell and cell will lyse
The ability of a lens to gather light is referred to as its
A) resolution. B) numerical aperture. C) refraction. D) contrast. E) magnification.