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Scientists stanley miller and harold urey sealed water, methane, ammonia, and hydrogen in a flask, to simulate earth’s early environment. they exposed the chemicals to electric charges to simulate lighting. what did the process produce? a. nucleic acids b. bacteria c. viruses d. amino acids
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1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit
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Biology, 22.06.2019 10:10
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Which substance is a greenhouse gas that is emitted by human activities, is the most widespread, and remains in the air the longest?
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Scientists stanley miller and harold urey sealed water, methane, ammonia, and hydrogen in a flask, t...
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