The space between the two layers of the Longs that creates a friction free environment and controls the pressure gradient difference in the lungs

What creates an electric force field that moves electrons through a circuit? a. energy sourceb. loadc. metal wiresd. resistance

Does the weight loss program have practical significance? a. no, the program is not practically significant because the results are likely to occur even if the weight loss program has no effect. b. yes, the program is practically significant because the results are too unlikely to occur by chance. c. yes, the program is practically significant because the amount of lost weight is large enough to be considered practically significant. d. no, the program is not practically significant because the amount of weight lost is trivial.

Using a muscle's full range of motion will result in which of the following? a. muscle imbalance b. increased strength to the entire muscle c. the muscle not being strengthened d. reduced joint flexibility