Which of the following is not true regarding lactic acid build up? a. it is a normal byproduct when overloading the muscles while training. b. it can cause permanent injury and should be avoided. c. it is caused by anaerobic energy conversion. d. it can lead to muscle soreness.

Fitness evaluations are usually design for certain group of people

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.

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