You are given a pill in a scientific trial that looks identical to a pill containing an active ingredient, but your pill does not contain an active ingredient. The pill you were given is called a(n):
A) treatment.
B) aspirin.
C) tablet.
D) narcotic.
E) placebo.
E) placebo.
Biology & Microbiology
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Viruses that infect bacteria are
A. prions. B. not known to exist. C. composed of protein only. D. bacteriophages. E. also capable of causing disease in humans
Biology & Microbiology
A(n) chemical formula shows the types and numbers of atoms in a molecule and their arrangement. Indicate whether the statement is true or false
Biology & Microbiology
The Archaea plasma membranes are made up of branched-chain hydrocarbons bounded to glycerol by:
a. hydrogen bonding. b. covalent bonding. c. polar bonding. d. ester linkages
e. ether linkages
Biology & Microbiology
Which type of transcription are the proteins called transcription factors involved in?
a. elongation b. initiation c. termination d. stabilization
Biology & Microbiology