It is difficult to distinguish between colors at night because
a. we are seeing primarily with the cones.
b. rods do not adapt to the dark.
c. we are seeing primarily with the rods.
d. we are used to seeing mostly with the fovea.
e. visual accommodation cannot occur in the dark.
c. we are seeing primarily with the rods.
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Vasopressin and angiotensin II are similar in that they both promote ____.
A. increased urination B. decreased thirst C. decreased blood pressure D. increased blood pressure
It is difficult to isolate the precise damage caused by illegal drugs during pregnancy because __________
A) most drug-using mothers refuse to participate in teratology research B) the majority of babies born to drug-using mothers do not survive for more than a few days C) most drug-using mothers quit using illegal drugs during the first trimester of pregnancy D) drug users often take several drugs, display other high-risk behaviors, and suffer from other stresses
What would you do to elicit the Babinski reflex in an infant?
a) make a loud noise b) stroke the infant's cheek c) press a finger in an infant's palm d) stroke the bottom of an infant's foot
The imposed norm hypothesis suggests that:
a. dialects differ in value based on their place of origin b. people are biased in favour of their own dialects c. some dialects are more aesthetically pleasing than others d. the non-standard dialects are viewed negatively because social norms are biased against them e. dialects are equally pleasing