You can tell if matter is conserved if the substance changes . If the substance changes then matter has been conserved .
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I guess membrane is answer
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it is a category of star. our sun is a white dwarf
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Megaloblastic anemia is most often due to hypovitaminosis, specifically vitamin B12 (cobalamin) and folate deficiencies, which are necessary for the synthesis of DNA. [3] Copper deficiency and adverse drug reactions (due to drug interference with DNA synthesis) are other well-known causes of megaloblastic anemia.
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