The original source of phosphorus in a terrestrial ecosystem is soil microorganisms. soil becomes deficient in phosphorous leading to ecosystem retrogression. phosphorous can be found in our body, it builds strong bones and teeth.
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Kaolin
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Trees, wind, and solar energy are all renewable resources.
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The cell walls observed by Hooke gave no indication of the nucleus and other organelles found in most living cells. The first man to witness a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra. Van Leeuwenhoek probably also saw bacteria.
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Malárie je způsobena parazity Plasmodium. Paraziti se k lidem šíří kousnutím infikovaných samic komárů Anopheles, nazývaných „vektory malárie“. Existuje 5 druhů parazitů, které způsobují malárii u lidí, a 2 z těchto druhů - P. falciparum a P. vivax - představují největší hrozbu
