Which wavelengths are absorbed by the ozone layer high in the atmosphere?
a. visible wavelengths of electromagnetic radiation
b. longer wavelengths of electromagnetic radiation
c. any wavelength of electromagnetic radiation
d. shorter wavelengths of electromagnetic radiation
Ans: d. shorter wavelengths of electromagnetic radiation
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Where do you expect to find thermophiles?
A. In environments lacking oxygen B. In hot environments C. In salty environments D. In dry environments
In eukaryotic cells, replication proceeds from ________ origin(s) of replication.
A) zero B) one C) two D) many
Which of the following is an important characteristic for a model organism?
A) marginally characterized B) difficult to manipulate in the laboratory C) prone to random changes that alter primary characteristics D) widely studied E) all of the above
Which of the following substances is commonly used to inactivate microbes?
A) formaldehyde B) alcohol C) synthetic detergents D) fluorescent dyes E) alum