Tetrodotoxin, the poisonous substance produced by the puffer fish, interacts with which of the following?
a. sodium channels that are dependent on voltage
b. calcium channels located at the axon terminal
c. hydrogen channels located on postsynaptic dendrites
d. potassium channels located on the axon membrane
a
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Strength training has been found to help prevent the loss of bone mass in older people
Indicate whether the statement is true or false.
Who is best demonstrating social referencing?
A. A 3-month-old cries when her father puts her down after holding her for a long period. B. A 6-month-old plays laughs when playing peek-a-boo with her mother. C. A 15-month-old screams and reaches for her mother after falling down and scraping her elbow. D. An 18-month-old looks to her father before smiling at an unfamiliar woman who says "hello."
Which of the following describes a learning-theory view of hate?
A) Sally grew up in a warm loving home; she has intense feelings of hatred and violence toward everyone else in the world. B) Sally grew up in a hostile unloving home; she has intense feelings of hatred and violence toward everyone else in the world. C) Sally grew up in a hostile unloving home, but she does not have intense feelings of hatred and violence. D) Sally was born with an intense level of hatred that, despite her parents' love, only worsened throughout her life. E) Sally perceives the world around her as volatile; therefore, she reacts with feelings of hatred and violence.
Toddlerhood lasts from about 12 to 16 months.
Answer the following statement true (T) or false (F)