Erikson and colleagues (2009) were interested in whether aerobic exercise had any effect on the volume of the hippocampus, a key brain structure related to memory. To assess this, they had older adults
a. play basketball.
b. take yoga classes.
c. swim laps each day.
d. exercise on a motorized treadmill.
Question 2
The National Human Neural Stem Cell Resource supplies researchers with neural stem cells that are obtained from
a. umbilical cords.
b. postnatal, postmortem human brains.
c. mice.
d. living humans.