1. how does holding a newborn affect brain development?

2. what influence does music have on the brain development of a six-month-old?

3. does talking to a nine-month-old have any effect on brain development?

4. what does a 15-month-old remember?

5. how much memory can a two-year-old child’s brain hold?

6. what does sbs stand for?

7. what is shaken baby syndrome?

8. when is a baby at the greatest risk of injury from sbs?

9. what is a frequent trigger for sbs?

10. how can sbs be prevented?

Every person’s body is different, a. but every vehicle’s cabin layout is the same b. and every vehicle’s cabin layout is different c. making some people automatically safe drivers d. making some people better fit to drive a sedan than a coupe

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.