The mass of a given volume of matter is expressed as
A. weight.
B. energy.
C. density.
D. gravity.
C. density.
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The electrical difference between the inside and outside of a neuronal membrane when the cell is NOT sending signals is specifically referred to as the
A. action potential. B. graded potential. C. resting potential. D. membrane potential. E. reversal potential.
Partially hydrogenated fats are also referred to as ________ fats
Fill in the blank(s) with correct word
Which of the following is not necessary to satisfy Koch's postulates?
A) The organism must cause disease through toxin production. B) The organism must be grown in pure culture outside the diseased host. C) The organism must be re-isolated from the experimentally infected diseased animal and shown to be identical to the original isolate. D) The organism must be present in every case of the disease. E) The organism must cause the disease when introduced from pure culture into a healthy host.
Which step in this process requires use of restriction enzymes?
A) step A B) step B C) step C D) step D