Please answer this: What is the missing first step of the following process: - 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 - Blood can bring the oxygen to different cells in the body.
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Answer: Air travels into the body

Problem: What is the missing first step of the following process: - The receptors will lock onto a target cell using these chemical receptors on the surface, which docks onto the cell surface - The receptors then go into the cell - The receptors use it like a factory - The receptors take it over and make it produce thousands or in some cases millions of copies of new viruses - The copies come streaming out of the cell - The copies infect other cells to make more viruses, or they escape from the body and infect a new victim -

A: The flu virus has receptors, which are like viral Velcro, on the surface of the virus particle

Problem: Given the question: What is the missing first step of the following process: - People burn coal for heat or electricity - Pollution from the coal goes into the sky - Coal pollution enters clouds - Clouds rain over an area - The polluted rain becomes acid rain.
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The answer is:
People dig up coal from the ground

input question: What is the missing first step of the following process: - Slide out the bottom rack - Take a dirty plate - Rinse the plate - Place the dish in the rack - Repeat leaving enough space for water to reach all items - Fill the soap cup - Turn on the dishwasher.???
output answer: Open the Dishwasher

What is the missing first step of the following process: - A baby bird forms within the egg if it is fertilized - The baby bird begins pecking out of the egg - The baby bird is unable to fly to get food - The mother bird must feed the baby bird food - The bird grows stronger and grows wings - The bird is able to fly - The bird is able to leave the nest and find food - The bird is able to reproduce.
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Answer: An egg is laid by a mother bird

Q: What is the missing first step of the following process: - The trees and plants burn - The animals lose their homes - If the animals can not escape, they may die from smoke inhalation - The plants that provide food are gone - The animals have little to eat -
A:
A forest fire starts