You are a brilliant graduate student and you are skeptical of the results found by the Lederbergs. You decide to repeat their experiment, but you do not have ready access to T1 bacteriophage. What might you use instead?
A. HIV (human immuno deficiency virus)
B. HPV (human papilloma virus)
C. EMS, a chemical mutagen
D. Ampicillin, an antiobiotic that inhibits growth of bacterial cell wall
E. Salmonella bacteria
D. Ampicillin, an antiobiotic that inhibits growth of bacterial cell wall
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The taxonomic category that includes species of apes, humans, and their ancestors is known as ____
a. hominids b. hominins c. hominoids d. australopithecines e. apes
In Pavlov's dog experiment, what were the original and conditioned stimuli?
A. original stimulus: food, conditioned stimulus: metronome B. original stimulus: saliva, conditioned stimulus: food C. original stimulus: metronome, conditioned stimulus: experimenter D. original stimulus: experimenter, conditioned stimulus: saliva E. original stimulus: metronome, conditioned stimulus: saliva
Which of the following statements about the
prostate is FALSE?
a. Prostate enlargement can be a symptom of prostate cancer. b. Prostate cancer is the leading cause of death in males. c. In young men, the prostate gland is the size of a walnut. d. The urethra runs through the prostate gland. e. The prostate gland is directly below the urinary bladder.
The left ventricle of the heart contains more muscle.
a. true b. false