During mitosis, chromosomes
a. duplicate themselves exactly. c. merge with other chromosomes.
b. mix their genetic material. d. transmit genetic information.
A
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Which is an example of a cognitive or mastery smile?
a. Smile at being tickled b. Smile at making a bell jingle c. Smile at seeing a favorite toy d. Smile at seeing mommy in the morning
What occurs during stage 1 sleep?
A. Both our respiration and heartbeat quicken. B. Both our respiration and heartbeat slow down. C. Our respiration quickens while our heartbeat slows down. D. Our respiration slows down while our heartbeat quickens.
Which of the following risk factors is most strongly associated with somatic symptom disorders in children?
A) stress B) family violence and conflict C) history of sexual abuse D) family separation and loss
Jim is 55 months old. Which of the following fine motor skills is he MOST likely to develop?
A. stringing shoelaces B. cutting interior pieces from paper C. copying two short words D. tracing by hand