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Which of the following breaks food down into energy that the body can then use? OA. Enzymes OB. Hormones OC. Lymphocytes OD. Neurons
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Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters
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Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting
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The organelle pictured is found in cells of and is theorized to have once been an independent organism.
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Your sense of touch depends upon: a. direct contact b. heat chemical c. reactions d. pain
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Which of the following breaks food down into energy that the body can then use? OA. Enzymes OB. Horm...
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