With a scanning electron microscope, objects are generally magnified
a) 100 to 100,000x.
b) 100 to 10,000x.
c) 1,000 to 100,000x.
d) 1,000 to 500,000x.
Ans: d) 1,000 to 500,000x.
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Which one of the following characteristics is NOT true for all living cells?
a. All cells are derived from preexisting cells. b. All cells contain a nucleus. c. All cells utilize organic fuel molecules as energy sources for their activities. d. All cells respond to outside stimulation. e. All cells possess a plasma membrane.
Under anaerobic conditions, the end-product of glycolysis is converted to
What will be an ideal response?
Which scenario best describes a double-blind study?
a. The investigator and the subjects wear blindfolds. b. No one knows what is in the experimental or control group c. The subjects do not know if they are in the experimental or control group. d. Neither the investigator or the subjects know if they are in the experimental or control group. e. The investigator does not know if subjects are in the experimental or control group
Phylogeny research is LEAST likely to include which type of analysis?
A. Ggenetic B. Anatomical C. Behavioral D. Physiological E. Direct observation of evolution