Antibiotics can kill ________________ in the human body, which may sometimes lead to health problems such as inflammatory bowel disease
A. harmful bacteria
B. beneficial bacteria
C. both harmful and beneficial bacteria
D. fungi
E. archaeons
C
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Tropical areas absorb more heat than they lose and polar areas lose more heat than they gain. How is it that the tropics do not continue to get warmer and the poles don't get colder with time?
What will be an ideal response?
Animals are net
A. O2 consumers and CO2 producers. B. O2 and CO2 producers. C. O2 and CO2 consumers. D. O2 producers and CO2 consumers.
In the biosynthetic pathway for conversion from homoserine to methionine, you identify a Neurospora crassa double mutant Met1/Met2. This mutant will grow only if which supplement(s) are added to the minimal media?
A) homoserine only B) cysteine only C) homocysteine only D) cystathionine and homocysteine E) methionine only
You discover a new fluorescent protein that emits photons with a wavelength of 600 nm. Which of the following wavelengths of light might excite the protein?
A) 455 nm B) 590 nm C) 550 nm D) all of the above