The generation time of Escherichia coli in the human intestine is ________ in laboratory culture
A) at about the same rate as
B) faster than
C) more optimal than
D) slower than
Answer: D
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Which one of the following is characteristic of both living organisms and non-living material?
A. the capacity to evolve B. the ability to reproduce C. complexity, with spatial organization on several levels D. the ability to change in response to the environment E. obeying the basic laws of chemistry and physics
Retroviruses differ from other RNA viruses by:
a. having reverse transcriptase instead of RNA-dependent RNA polymerase. b. the shape of their capsid. c. the way they infect their host cells. d. the sugar coating on their capsids. e. lytically destroying their hosts
In what way are cilia and flagella similar?
a. They both propel a cell in the same way. b. They both occur in great numbers. c. They are identical in structure. d. They are both of the same length.
Define diffusion.
What will be an ideal response?