An IPSP will be produced when a ligand
a. closes a sodium channel.
b. opens a sodium channel.
c. opens a potassium channel.
d. closes a calcium channel.
e. opens a calcium channel.
Answer: c. opens a potassium channel.
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The most widely used and most effective birth control pill is one that contains which hormone(s)?
a. luteinizing hormone b. androgen, but not estrogen c. both estrogen and androgen d. both estrogen and progesterone
Ole and Lena are a cohabitating couple in Norway, while Jack and Diane are a cohabitating couple in the United States. Cross-cultural research would predict that a. Ole and Lena will only marry if they have children
b. Ole and Lena will believe that they are living in sin. c. Jack and Diane will be unlikely to ever marry. d. Jack and Diane will be at significantly less risk for divorce should they marry.