Which is one part of the immune system that protect the body from diseases ?
a. mucus
b. skeleton
c. esophagus
d. fingernails

If babies are consistently placed on their backs without any restrictions, what will happen to their development? a. they suffer from weakness in certain muscle groups. b. their ability to roll over, crawl, and eventually walk is hindered. c. they suffer brain damage from the pressure on the back of the head. d. they learn to roll over, crawl, and eventually walk on their own.

Are needed by the body in large amounts in order to maintain good health

According to research, which of the following statements reflecting the relationship between emotion and the prefrontal cortex is false? a.the prefrontal cortex to regulate one's emotional response. b. the prefrontal cortex is activated when processing information associated with stress. c. sensory input indicating emotion first enters the prefrontal cortex before traveling to the amygdala. d. the prefrontal cortex processes information associated with emotional pleasure.