When an event must occur, its probability is 100
Indicate whether the statement is true or false
F
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In a study of twins, a researcher finds that 40 percent of dizygotic (DZ) twins and 40 percent of monozygotic (MZ) twins share a trait. What is the researcher most likely to conclude about the trait?
a. It is 40 percent concordant. b. It is 60 percent concordant. c. It is genetically determined. d. It is not genetically determined.
The vibrations of the eardrum that are caused by sound waves are amplified in the:
A. outer ear B. inner ear C. middle ear D. ear canal
Kobe is concerned about his younger brother taking anabolic steroids. As he researches this potentially fatal problem, he will find that ____ percent of boys between the ages of 15 and 18 have taken these drugs to gain more muscle mass
a. 4 b. 6 c. 8 d. 10
Kayla is 4 years old and has recently begun coordinating the two sides of her body more efficiently. This development may be attributed to
growth of the corpus collosum. longer arms and legs. brain lateralization. adequate calcium in her diet.