Which of the following is a secondary sexual characteristic?
A) ovaries
B) pubic hair
C) scrotum
D) testes
Answer: B
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One way of assessing whether intelligence tests actually work is to compare their results with measurements of other areas known to be related to intelligence. In fact, intelligence tests are very powerful predictors of all EXCEPT which of the following?
a. school grades b. scores on achievement tests c. social skill and peer acceptance d. number of years of education
A teacher wants to find out if a problem-based history program is superior to the regular history curriculum being used. The motivation and intelligence of the students participating in the new and the regular history programs would be considered the __________ variables
a. independent b. dependent c. extraneous d. control
The diameter of an axon is correlated with a. the age of the organism
b. the speed of signaling in the axon. c. the number of synapses formed by the axon. d. whether or not learning has occurred.
Older fathers are more likely to produce:
a. genetic defects. c. abnormal fetal growth. b. chromosomal defects. d. abnormal sperm.