Answer: The innermost layer of the small intestine is made up of epithelial cells and contains four layers; mucosa, submucosa, muscle layer, and adventitia.
Although action and reaction<span> forces are always equal and opposite to </span>each other<span>, they are acting on two </span>different<span> objects. Saying that the forces </span>balance each other<span>implies that they are adding up to equal zero. Forces are only added when they are acting on the same object, </span>not<span> on </span>different<span> objects</span>
According to the exercise principle of balance, a workout should __________.
D.
vary exercise activities over time
The correct answer is letter C. glucose. The oxygen-energy system can extract energy from glucose. Actually, there are three separate energy production systems that comes from the foods that we eat and turn into a chemical energy. These are the: ATP-PC system, Anaerobic glycolytic system, Aerobic <span>system. Glycolytic system contains glucose.</span>
