What are the hairlike filaments used by bacteria to stick to other cells?
a. Actin filaments
b. Flagella
c. Microtubules
d. Pili
e. Cilia
d
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Which of the following pHs is the most acidic?
a. 1 b. 3 c. 5 d. 7 e. 9
Most carnivorous plants use their prey as a source of
A. carbon. B. magnesium. C. nitrogen. D. potassium. E. hydrogen.
Breathing rates are automatically increased when _____ levels are _____
a. oxygen; high b. carbon dioxide; high
c. oxygen; low d. carbon dioxide; low e. ATP; low
What is the relationship between recombination frequency and the actual physical distance on a chromosome?
A. As physical distance increases, the recombination frequency decreases in a linear fashion. B. As physical distance increases, the recombination frequency first increases, but then decreases. C. As physical distance increases, the recombination frequency increases in a linear fashion. D. As physical distance increases, the recombination frequency first increases in a linear fashion, but gradually levels off to a frequency of 0.5.