The two domains composed of only unicellular organisms are
a. eubacteria and archaea
b. eukarya and bacteria
c. archaea and bacteria
d. archaea and eukarya
Ans: c. archaea and bacteria
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Indicate whether this statement is true or false.
The gene frequencies of a population can be expected to change if
A. the population is small. B. no mutation occurs. C. no migration occurs into or out of the population. D. random mating occurs.
Standard pasteurization methods are used to
A) reduce microbes that cause spoilage. B) remove all thermoduric microbes. C) reduce microbes that cause disease. D) remove all microbes. E) reduce microbes that cause disease or spoilage.
Endospores will appear _____ then the vegetative cell.
a. bigger b. smaller c. the same size