I think the correct answer would be algae. The cell walls of some algae are composed of minerals such as calcium carbonate. Algae belongs to the kingdom of protista where most are single celled and found in bodies of water. Most of the cell walls have microfibrils of cellulose and some contains other substances like silica, polysaccharides and calcium carbonate.
Hi !
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Osteoarthritis <em>occurs when the smooth cartilage joint surface wears out. ( in an isolated joint.)</em>
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Rheumatoid arthritis<em> ( autoimmune disease), the immune system malfunctions and attacks the body instead of intruders.</em>
In the story "Miss Evers' Boys", there is a proposed study to not give antibiotics to a man who could potentially benefit from its use. However, if the antibiotics do not work and the man dies, then others will not want to try it. Nurse Evers objects that there is no formal consent in this proposed study, but she then offers to give the men free rides and meals in exchange for their consent.
The answer would be A. Muscle Cramp
because that is the only option shown here that someone doesn't need to go to the E.R. for. For example, if you try massaging a hairline fracture, there's a good chance you'll break someones bone.
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