How are professional credentials usually maintained? a. by joining the professional association b. by completing a continuing education cycle c. by receiving a degree d. by passing an annual examination

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.

In 2009, 40% of all bicyclist fatalities occurred when the bicyclist, the driver, or both vehicle operators were

Why does the body need calcium and what are the symptoms of calcium deficiency?