The scientific method attempts to:
a. propose theoretical ideas to answer questions
b. minimize errors and bias in gathering information and answering questions
c. promote common sense understanding
d. dispute common sense by forcing scientists to do experiments
B
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What is a key difference between spontaneous movements and movements in response to a stimulus?
a. Spontaneous movements are faster and fatigue more rapidly. b. Spontaneous movements have more accurate aim. c. Spontaneous movements use a different pattern of muscles. d. Spontaneous movements develop more gradually.
____ refers to a collection of physical changes that marks the onset of adolescence, including changes height, weight and body composition, and transitions in sexual maturation
a. Adolescence b. Climacteric c. Puberty d. Menarche
Oscar is 75 years old. His doctor has encouraged him to walk briskly each day in order to maintain or improve his cognitive performance. What is the most likely reason for this?
a. ?Exercise may boost neurogenesis, particularly in the amygdala. b. ?Exercise may reduce excess “noise” in his neural activity. c. ?A fit cardiovascular system may increase delivery of oxygen to the brain. d. ?Brisk walking may prevent neural decay, particularly in the amygdala.
A research study that does not have random assignment can still be an experiment if there is a proper control group
a. True b. False Indicate whether the statement is true or false