The waxy cuticle of plants are made of (A) lipids and also hydrocarbon polymers which give it the waxy, protective structure.
<span>If you are asking about gastric acid, its mainly made up of HCl (hydrochloric acid). Intrinsic factors are also produced which are very similar to enzymes. Carbonic acid is produced but also quickly dissociates. -Jo</span>
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Stem cell research can potentially help treat a range of medical problems. It could lead humanity closer to better treatment and possibly cure a number of diseases: ... Alzheimer's Disease. Heart Diseases, Stroke and Diabetes (Type 1)
Answer:
D.
Explanation:The function is determined by the genetic material.
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The need for continental time zones stemmed directly from the problems of moving passengers and freight over the thousands of miles of rail line that covered North America by the 1880s. Since human beings had first begun keeping track of time, they set their clocks to the local movement of the sun.