Answer: To help researchers conclude that results are related to the new drug and not to the orange juice.
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I could be wrong, Hope this helps
Answer:
Explanation:
Healthy kidneys filter about a half cup of blood every minute, removing wastes and extra water to make urine. ... Your kidneys, ureters, and bladder are part of your urinary tract. You have two kidneys that filter your blood, removing wastes and extra water to make urine.
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The parameters of the area when organizing the population of the biosphere is called a specie.
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Weather on Earth is caused by heat from the sun and the movement of the air. All-weather happens in the lower layer of Earth's atmosphere, which is a layer of gases surrounding Earth. This movement of air is what we call wind. Winds bring changes in the weather, such as clear sunny skies or heavy rain.
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