input: Please answer the following: What is the missing first step of the following process: - The air travels into the windpipe - The windpipe divides the air to the two lungs via the bronchial tubes - The lungs oxygenate the blood in the body - Carbon dioxide is filtered out by every cell in the body - The carbon dioxide is carried back to the lungs via the bloodstream - The carbon dioxide is exhaled.
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output: Air is taken into the body via the nose or mouth

Please answer this: What is the missing first step of the following process: - You water the seeds - You wait for the seeds to sprout - You keep the area free of pests and weeds while the plants grow - You thin out the plants as they get bigger to give them space to grow - You remove the vegetables from the plants when they are ripe.
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Answer: You plant vegetable seeds in the ground

Problem: What is the missing first step of the following process: - The owl flys out into the night - The owl looks down at the ground - The owls keen eyesight allows him to see in the dark - The owls sensitive hearing allows him to locate hidden prey - The owl swoops down - The owl catches a mouse in his talons.

A: An owl leaves his nest

Problem: Given the question: What is the missing first step of the following process: - The liver uses enzymes to clean the blood - The cleaned blood is expelled - The liver creates bile from the items filtered - The liver takes energy and stores it as glycogen - The bile is sent to the intestines.
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The answer is:
The liver takes in blood from the rest of the body

input question: What is the missing first step of the following process: - The female lays eggs - The eggs are incubated by the parents, by sitting on them, for weeks - The bird hatches from an egg - The parents feed them as the continue to grow - Develop flight feathers - The parents teach them to fly - After learning to fly they leave the nest to live on their own - The next year they breed beginning the cycle again -???
output answer: A male and female bird mate

input question: What is the missing first step of the following process: - The oxygen travels into the body - Breaks down into glucose - Carbon dioxide is produced by the glucose breakdown - The carbon dioxide is exhaled out of the body through the nose or mouth.???
output answer:
A person takes in oxygen through their nose or mouth