The incidence of Down syndrome increases __________.
A. when the mother drinks heavily during pregnancy
B. if the father is extremely young
C. as the age of the parents increases
D. when the mother is exposed to lead during pregnancy
Answer: C
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A genetically male child likely has which of the following sex chromosome pairings?
A. XX B. XXY C. XY D. YY
You are watching a small plane move across the sky from quite a distance. The eye movements you are making are known as ______.
A. saccades B. motion saccades C. smooth pursuit eye movements D. beta motion movements
Pacinian corpuscles and hair cells are both depolarized by movements that cause opening of cation channels. thus, they are both examples of ______ type neurons
Fill in the blank(s) with the appropriate word(s).
Problems in the interpretation of the results of a multiple-baselines design can arise when
A. changes in performance appear in one of the baselines after an experimental intervention. B. changes in performance appear in one of the baselines before an experimental intervention. C. changes in performance appear in the treatment stage simultaneously with an experimental intervention. D. changes in performance appear in the treatment stage after an experimental intervention.