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What organ protects the body from injury, water loss, and microorganisms?
answered
Jan 7
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Science
0
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53
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What is the first cell of a new organism?
answered
Jan 7
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Science
0
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23
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What is produced when sulfur and oxygen combine?
answered
Jan 6
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Science
0
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22
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What catalyst substances may also allow reactions to occur by different pathways that have lower activation energy?
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Jan 6
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Science
0
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25
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Veins are blood vessels that carry blood toward what?
answered
Jan 2
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Science
0
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42
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Tropomyosin is a type of what, that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin?
answered
Jan 2
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Science
0
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11
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In 1802, charles and gay-lussac both proposed that for a fixed amount of gas at a constant pressure, what is directly proportional to its absolute temperature?
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Dec 30, 2024
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Science
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20
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About one-fourth of the blood pumped with each heartbeat enters arteries serving what organs of digestion?
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Dec 30, 2024
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Science
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