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Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?
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Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.
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There are only about 250,000 known fossil species. true or false
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Snails and insects belong to which group of organisms?...
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