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What is the life-span of the various organs in the human body

WebPerhaps you can infer relative lifespan from the age at which organs start declining in someone of average health. Skin, muscles, bones, eyes, and ears start to …

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URL: https://biology.stackexchange.com/questions/3615/what-is-the-life-span-of-the-various-organs-in-the-human-body

How does a fetus retain a blood group different from its mother

WebThe maternal and fetal blood circulation systems are completely separate. The embryo's blood cells start developing at around week 5 gestational age (3 weeks after conception), …

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What are the bare minimum nutrients required to survive as a …

WebThe following are estimations of the lowest intakes of some nutrients needed to remain healthy.. Note, that this are not "recommended" or "optimal" intakes. Protein = …

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Does drinking dry water have same effect as drinking regular water

WebHuman health effects associated with silica exposure, especially crystalline silica (0.5–10 µm), have widely been studied. Occupational exposure to crystalline silica …

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What makes humans omnivores, and not herbivores

Web7. The simple answer is humans are omnivores – physiologically – because we have the capability to digest both plant and animal matter. Many humans are …

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Why do humans seem so much more prone to disease than animals

Web1. This answer seems to suggest that humans are actually less prone to disease than other animals, and that our diverse genetic pool is the reason why. Let's see some references, …

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Why does hypocalcaemia cause increased muscle contraction

WebConsider the pathophysiology of tetany, which is the involuntary contraction of muscles caused by hypocalcemia. From the tetany wikipedia page: Low ionized calcium …

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What is difference between High quality and low quality proteins

WebNot all sources of protein have sufficient quantities of all of the essential amino acids. Low-quality protein sources are also referred to as "incomplete" and high …

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Is touching or inhaling 70% isopropyl alcohol dangerous to humans

WebIf you're interested in the biological or health effects of various chemicals, try to look up the Safety Data Sheet, or "SDS" or "MSDS", for that chemical compound.. …

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Do people need nitrogen from air for health

Web$\begingroup$ Some short comments - Nitrogen gas is pretty much inert and nutritional nitrogen is mainly obtained from the diet. Inhaling pure oxygen will kill you in …

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Rust on kettle dangerous to consume

WebThe average lethal dose of iron is 200–250 mg/kg of body weight, but death has occurred following the ingestion of doses as low as 40 mg/kg of body weight. Of …

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How large is the variability in human bone thickness, and is "big …

WebStack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …

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Is there a medical condition in which you can't cut your hair

Web2. An phobia or OCD released to appearance might lead someone to face dire situations when their hair is cut even death if the fear leads to a heart attack. Share. …

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Effects of tobacco smoke on plant health

Web$\begingroup$ @CuriousIndeed Your question seems to be asking about the gaseous components of cigarette smoke and their effects on plants, but, considering a …

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How many people are required to maintain genetic diversity

WebThe distinction between this being the correct answer and the one chosen, has to do with the level of genetic preselection. I agree that a minimum of 1000 "randomly chosen" …

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