Professor Eisenhower explains to her class that the steroid hormones (like androgens) produce effects by _____.
A. disrupting cell membranes
B. opening ion channels
C. increasing blood pressure
D. entering cells and affecting gene expression
Answer: D
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The calculation of Range = Xmaximum- Xminimum is used to determine ______ or ______.
A. mean; interquartile range B. interquartile range; variability C. variability; interquartile range D. range; interquartile range
The importance of heredity stems from the fact that it
a. is not subject to environmental influences. b. determines the overall health of the organism. c. sets the limits of development by providing a framework of potentials and limitations. d. is more fragile than the environment and, consequently, can be more changeable.
Despite the complexity of prenatal development, the large majority of all babies are born without serious congenital abnormalities
Explain the reasons for this high incidence of normality, and explain what, if anything, we can do to increase it. Indicate whether this statement is true or false.
Mental representations of visual stimuli are referred to as _________ that are held in the sensory register called __________ memory
a. icons; iconic c. icons; short-term b. echoes; echoic d. echoes; short-term