[Q]: What is the final step of the following process: - Electrical signals in the brain travel through nerves to muscles - Two types of proteins exist in filaments in the muscles - The filaments move when the brain instructs them to - The motion of the filaments cause the muscle to shorten and contract
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[A]: Opposing pairs of muscles exist in order to provide the necessary range of motion.

input: Please answer the following: What is the final step of the following process: - The liver removes toxins from the blood - Liver also cleans blood that has just been enriched with vitamins and minerals during digestion - Liver processes the good stuff into forms that the rest of the body can use - Waste or stuff your body doesn't need can be carried by bile back into the intestine or into the kidneys - The liver also produces a digestive juice called bile that helps the body absorb fat into the bloodstream
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output: The liver also stores extra carbohydrates as glycogen for the body to use as fuel when needed.

Please answer this: What is the final step of the following process: - Items are collected - The items are sorted - Trash is removed from everything else - Goes to a landfill - The items go into a baler machine for each kind of material - They come out as bales
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Answer: The bales are shipped to manufacturers to use to make products.

Problem: What is the final step of the following process: - A person breathes in oxygen - The oxygen passes through the bronchial tubes to the lungs - The oxygen is moved into the bloodstream - Circulates through the body - The cells in the body exchange the oxygen with carbon dioxide - The bloodstream carries the carbon dioxide back to the lungs

A: The lungs expel the carbon dioxide through the nose and mouth.

Problem: Given the question: What is the final step of the following process: - You inhale - Your diaphragm moves down - Your lungs have more room - Your lungs fill with air - You exhale - Your diaphragm moves back up - Carbon dioxide is exhaled
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The answer is:
You start the process over again.

Problem: What is the final step of the following process: - Air travels into the body - Air reaches the lungs - The lungs absorb the oxygen from the air - The oxygen is transported by hemoglobin - Red blood cells are made of hemoglobin - Blood has a lot of red blood cells - The heart moves the blood throughout the body

A:
Blood can bring the oxygen to different cells in the body.