If you were to examine a variety of human body cells under the microscope and look at the number of chromosomes contained in each, you would expect to see 46 chromosomes in all of the following cells EXCEPT:
a. a sperm cell
b. a liver cell
c. a neuron
d. a white blood cell
a
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A novel study with 4- to 6-year-olds that used fMRI to measure brain activity levels when children listen to stories found that __________.
A. parents who conversed with their children more in an experimental session tended to have children with higher overall brain activity B. parents who conversed with their children more during an experimental session tended to have children with higher activation in a region of the brain that includes Broca's area C. low-income children had lower brain activity than high-income children when they listen to stories D. brain activity was unrelated to the amount of conversation parents and children had in the experimental session
Cochlear implants contain microphones that sense sounds and electronic equipment that transmits sounds past damaged hair cells to stimulate the auditory nerve
Indicate whether the statement is true or false
Antoine is conducting an experiment on the effects of room color on people's ability to concentrate. The independent variable would be the
a. subjects' overall intelligence. b. size of the room. c. room color. d. ability to concentrate.
What is the percentage of men over 60 with at least some impairment of erectile function?
A. 3% B. 5% C. 20% D. 60%