A fertilized human egg contains ______.
a. 23 matched pairs of chromosomes
b. 48 pairs of chromosomes
c. thousands of chromosomes
d. 46 chromosomes for females and 45 chromosomes for males
Ans: A
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How are observational studies different from observational case studies?
a. In an observational study, the researcher becomes an integral part of the setting of the study. b. In an observational case study, the researcher must make a valid case for inclusion in the study. c. In an observational study, specific observers must be recruited to ensure the validity and reliability of research findings. d. In an observational study, researchers can only observe; in an observational case study, they can also ask questions.
Which of the following is the best description of emotions?
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Idealism and Classical Realism would include in educational theory and practice:
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Which activity is selected by American children and adolescents more than any other culture?
A. music B. drama C. sports D. journalism