All chemical reactions involve energy. Energy is used to break bonds in reactants, and energy is released when new bonds form in products. (sorry if that’s not helpful.)
Cells are divided into two main classes, initially defined by whether they contain a nucleus. Prokaryotic cells (bacteria) lack a nuclear envelope; eukaryotic cells have a nucleus in which the genetic material is separated from the cytoplasm. Prokaryotic cells are generally smaller and simpler than eukaryotic cells; in addition to the absence of a nucleus, their genomes are less complex and they do not contain cytoplasmic organelles or a cytoskeleton (Table 1.1). In spite of these differences, the same basic molecular mechanisms govern the lives of both prokaryotes and eukaryotes, indicating that all present-day cells are descended from a single primordial ancestor.
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Answer:
Diarrhea should go away in a few days without treatment. until you feel better, rest, drink enough fluids, and watch what you eat.
It was discovered in 1972
