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During a lab investigation containing liquids of any kind, you should always test the odor by waving your hand over the top of an open container and sniffing cautiously. This is called wafting, and should always be used in the case that a harmful chemical is being tested.
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Mutations produce random changes in an organism's genetic code. Mutations can occur in non-reproductive cells and then they will not be passed to the next generation, therefore will not contribute to variation. Only mutations that occur in reproductive cells are passed on to the next generations and contribute to genetic variation in a population.
C. It can pollute the groundwater.
Answer:
la teoría debe ser la precisión de las predicciones que debe producir
B I believe to be the correct answer
