What is cardiac vagal tone?
A) The variability or patterning of heart beats over time.
B) Heart rate frequency, or the number of beats per minute.
C) A competency that is more reflective of cardiovascular functioning than nervous system
integrity.
D) A measure that assesses the impact of the cardiovascular system on nervous system
development.
A
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The correct order of the stages of prenatal development is
A) fetal stage, embryonic stage, zygotic stage. B) germinal stage, embryonic stage, fetal stage. C) zygotic stage, fetal stage, germinal stage. D) zygotic stage, embryonic stage, germinal stage, fetal stage.
Why is it difficult to logically reason with a preoperational child?
A) Because the child thinks in ways that are too abstract. B) Because the child lacks formal operational thought. C) Because the child cannot take your perspective. D) Because of assimilation problems.