Which of the following diseases causes a skin rash, hair loss, malaise, and fever?
A) gonorrhea
B) syphilis
C) NGU
D) trichomoniasis
E) genital herpes
B
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What is the result of DNA ligase's action?
A. DNA is broken up at specific sites. B. DNA fragments are joined together. C. DNA translation occurs. D. DNA transcription occurs. E. DNA is condensed to chromosomes.
New alleles arise by
a. mutation. b. migration. c. genetic drift. d. random mating. e. independent assortment.
Which statement is false?
a. High concentrations of ATP inhibit the formation of more ATP. b. The ATP concentration in cells actually decreases at first when cells need large supplies of energy. c. When ATP concentration declines, enzymatic activity that produces ATP declines. d. Cells constantly adjust their metabolic reactions to provide energy whenever it is needed. e. The activity of many different enzymes influences the supply of ATP in cells.
The portion of the biosphere that is composed of any
form of water is the a. atmosphere. b. lithosphere. c. geosphere. d. hydrosphere. e. thermosphere.