Chemical signals released by animals to communicate with others of the same species
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One Liner
The dose of a toxicant that is lethal to 50% of the test population is calledविषाक्त पदार्थ की वह खुराक जो 50% परीक्षण आबादी के लिए घातक (lethal) होती है, कहलाती है
LD50 (Lethal Dose 50)
एलडी50 (LD50)
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Species that are naturally restricted to the boundary or edge of a habitat are known as
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Pollution caused by the discharge of hot water into natural water bodies is called
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The infamous teratogenic drug that caused severe limb birth defects in the 1950s was
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The increasing concentration of a toxic substance (like DDT) at successive higher trophic levels in a food chain is
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The international treaty adopted in 1997 aimed at reducing greenhouse gas emissions is the
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Photochemical smog is primarily formed by the reaction of sunlight with
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The medical condition of chronic lead poisoning is known as
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