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Author Question: Softwood trees ________. A) always have soft wood B) tend to have complicated cellular ... (Read 60 times) |
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.
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Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.