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What is the commonality between excretory system of worms, insects and vertebrates?
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Match the pollutants. 1. a chlorofluorocarbon smoke 2. a biodegradable organophosphate insecticide freon 3. particle pollution paint 4. hazardous waste monoxide 5. carbon is completely burned malathion 6. carbon is incompletely burned dioxide
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Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above
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What is the commonality between excretory system of worms, insects and vertebrates?...
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