input: Please answer the following: -  They process it with millions of tiny nephrons - Remove all the waste - The kidneys return the blood back to the body through the renal artery - Send the urine with the waste to the bladder through the ureters.  What might be the first step of the process?
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output: The kidneys receive blood from the renal artery


input: Please answer the following: -  The seeds are dispersed by wind, animals, etc - The seeds reach the ground - Grow into new trees - These new trees produce seeds - The process repeats itself over and over -   What might be the first step of the process?
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output: A tree produces seeds


input: Please answer the following: -  The blood travels into the neophrons - Waste is expelled via the neophrons - The waste goes to the bladder in the form of urine - The clean blood exits the kidneys.  What might be the first step of the process?
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output: Blood enters the kidney


input: Please answer the following: -  Air enters bronchial tubes - Air is then split into the bronchioles of each lung - Bronchioles have alveoli which are tiny air sacs - Alveoli is surrounded by many small blood vessels - Oxygen passes through alveoli into blood vessels - Blood leaves the lungs as it travels through the body - Blood carries carbon dioxide back to the lungs - Carbon dioxide released when you exhale.  What might be the first step of the process?
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output: