Thee body parts that help resist against diseases are white blood cells, antibodies, and the thymus.
It is the tropesphere. Hope i helped :)
Treating a city's water supply to remove any bacteria and impurities as clean and hygenic water supplies benefits the public/society.
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The part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life.
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It would be A and C The groin and The Buttocks
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