Emma is 7 months old. She intentionally shakes a rattle so it will make a noise she likes. This is an example of
a. secondary circular reaction.
b. simple reflex.
c. primary circular reaction.
d. tertiary circular reaction.
a
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In his history class, Mr. Guierra uses a direct instruction
teaching style in which he presents the historical information through lecture and through films. He questions his students frequently both orally and through quizzes. Research on Mr. Guierra's teaching style indicates that his students will do slightly better than other students on a. achievement tests. b. tests of abstract thinking. c. problem-solving tests. d. all of these tests.
Why is color vision deficiency more common in men than in women?
a. It depends on a dominant gene on the Y chromosome. b. It depends on a recessive gene on the Y chromosome. c. It depends on a dominant gene on the X chromosome. d. It depends on a recessive gene on the X chromosome.