True babbling occurs at

A) 6 months.
B) 8 to 12 months.
C) 9 to 18 months.
D) 1 year.

A) 6 months.

Psychology

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A trait within an organism that is present but not expressed is called the ___________ trait

a. dizygotic c. dominant b. monozygotic d. recessive

Psychology

One-year-old Dominic demonstrates a high level of persistence. This temperamental characteristic correlates with

A) frustration and overreaction. B) infant mental test scores and preschool IQ. C) poor social skills. D) strong interpersonal skills.

Psychology