<span>Aerobic -relating to or denoting exercise that improves or is intended to improve the efficiency of the body's cardiovascular system in absorbing and transporting oxygen. </span>Muscle strengthening- <span>the ability of a </span>muscle<span> group to develop maximal contractile force against a resistance in a single contraction. </span><span>Bone strengthening- </span><span>make </span>bones<span> grow and get stronger through an impact (often with the ground) or tension force that promotes </span>bone<span> growth and strength. Balance- </span><span>an even distribution of weight enabling someone or something to remain upright and steady. </span>Stretching- <span>straighten or extend one's body or a part of one's body to its full length, typically so as to tighten one's muscles or in order to reach something.
A. Sickle cell anemia. The red blood cells in the hereditary disease sickle cell anemia have a characteristically shape of a sickle, a moon shape, rather than a normal disc shape.
