How do viruses differ from all other
microorganisms?
a. they do not evolve
b. they have no nucleus
c. they are non-cellular
d. they are pathogens
e. more than one of these is a difference
between viruses and all other
microorganisms
C
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What nucleoside trisphosphate provides energy for lipid synthesis?
A. UTP B. CTP C. GTP D. TTP
Which of the following processes is inhibited in the presence of oxygen?
What will be an ideal response?
Which of the following statements regarding food webs is true?
A) A consumer may eat only one type of producer. B) Detritivores consume dead organic matter from a specific trophic level. C) Several species of primary consumers may feed on the same species of producer. D) Nutrient transfer moves from producer to consumer and back. E) A hawk at the top of the food web is only a quaternary producer.
Semmelweis advocated handwashing as a method of preventing which of the following diseases?
A) cholera B) puerperal fever C) smallpox D) anthrax E) syphilis