A(n) ________ is used clinically to measure lung volumes and rates of air flow.
A) electrocardiograph
B) electroencephalogram
C) ratiometer
D) X-ray
E) spirometer
Answer: E) spirometer
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Primers are used in both PCR and in DNA sequencing. What is the purpose of the primers?
A. to separate the DNA template strands. B. to provide a 3'- OH for DNA polymerase to build a new DNA strand. C. to terminate synthesis of the growing DNA strand. D. to separate various-sized DNA products. E. to add nucleotides to a growing DNA strand.
The symptoms of excessive consumption of alcoholic beverages are due to dehydration. Does that make sense? You drink a lot, and then you are dehydrated? Actually, it is caused by a hormone that is produced in response to the consumption of alcohol. What is this hormone?
a. ANF b. ADH c. vasopressin d. ACTH e. renin
If you are told that the digestive tract of the animal you are studying developed an anus before a
mouth, you may be looking at: a. an arthropod. b. an animal in which the embryo undergoes radial cleavage. c. an animal in which the embryo undergoes indeterminate cleavage. d. an animal in which the embryo undergoes enterocoely. e. an animal in which the embryo undergoes radial, indeterminate cleavage and enterocoely
____ is when liquid water is forced out of the surface of leaves
a. Root pressure b. Transpiration c. Guttation d. Hydration e. Translocation