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Which term describes foreign molecules that activate the immune system?
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Which sequence correctly shows the path of carbon dioxide during repiration?
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The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping
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There are two tomato plantlets one of them is kept in an oxygen chamber with a light source and another is kept in sunlight. both of them are watered regularly what will be the observation after two weeks
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Which term describes foreign molecules that activate the immune system?...
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