Which of the following is a suggested method for preventing and reducing childhood injuries?
A. increasing helmet usage during active play
B. eliminating playground equipment at schools
C. decreasing opportunities for physical activity
D. parenting interventions that improve supervision
Answer: D
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Sunny is a 20-week-old fetus. Sol is a 32-week-old fetus. If they were both normally developing fetuses, one would expect that Sol would _____ than Sunny
a. have a significantly less surfactant b. spend less time in distinct states of activity c. have significantly less myelin d. spend significantly more time in the distinct state of being awake
If a teacher wants to change a pattern of student studying that typically increases on the days prior to a test and drops to almost no studying at all in the days following a test, she should try a variable interval schedule such as a system that uses ____
a. ?random, unannounced tests b. ?self-testing at home c. ?no tests at all d. ?rewards on test day
What is the process that allows mixing the combinations of genes in a single chromosome resulting in a virtually infinite possible combination of genes?
a. sampling from a large genetic pool b. gamete swapping c. crossing over d. mitosis
What are the characteristics of first sentences?
What will be an ideal response?