What are the elements necessary for synthesis of chlorophyll? 1=S, N,Fe
2=S, Mg, Fe
3=S, N,Mg
4=S, N,Mg, Fe
4=Mg, N,Fe
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Ateam from new york presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. what would the team need before it draws a conclusion about the cases? medications that are specifically designed to treat the sickness machines that are built to process blood and reduce symptoms until patients are healthy again data that profile the various patients who report these symptoms proof that the excess sweating is related to the excessive kidney stones

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs