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According to the fossil record, how long ago do scientists believe life on earth first appeared?
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What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.
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The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.
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When a gasoline engine burns gasoline, what type of chemical reaction is occurring?
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According to the fossil record, how long ago do scientists believe life on earth first appeared?...
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