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If the atomic mass of fluorine is 19 with 9 protons, how many neutrons would it have?
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Afarmer has applied a pesticide to control a pest population that is affecting her crops. the pest population has reacted as shown below. which best describes the process that the pest population has experienced due to this environmental change? a genetic diversity b natural selection c natural resistance d genetic resistance
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Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?
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Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?
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If the atomic mass of fluorine is 19 with 9 protons, how many neutrons would it have?...
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