The period of the embryo occurs during the ____ weeks of pregnancy
a. first and second
b. third through eighth
c. ninth through 12th
d. 13th through 20th
B
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In many developing nations, children—particularly girls—play an important role in providing care for their younger siblings
a. True b. False Indicate whether the statement is true or false
According to the discussion of saccadic eye movements during reading,
a. the purpose of this kind of eye movement is to move the eye to a location where the acuity is especially high for the stimulus you wish to see. b. the research requires the participants to introspect about the nature of their eye movements during reading. c. the eye moves forward by a fixed, inflexible number of letters during each saccadic eye movement. d. good readers are more likely than poor readers to make regression movements, so that they can integrate the new material with the old material.
After years of studying the harmfulness of marijuana, scientists have concluded that frequent marijuana use can cause all of the following EXCEPT
a. a decrease in the brain's ability to cope with pain and stress. b. some loss of coordination and concentration. c. an increased risk of prostate and cervical cancer. d. the lowering of sperm production in men and the production of more abnormal sperm.
Which statement about classical conditioning is FALSE?
a. During learning, a neutral stimulus is paired with a UCS. b. Rewards or punishments are given after the response. c. The principles apply to both animals and humans. d. The CS reliably signals that the US is coming.