Problem: Given the question: -  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 -   What might be the first step of the process?
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The answer is:
The flu virus has receptors, which are like viral Velcro, on the surface of the virus particle


Problem: Given the question: -  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.  What might be the first step of the process?
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The answer is:
The liver takes in blood from the rest of the body


Problem: Given the question: -  The virus enters the human or animal body - The virus goes to the part of the body that contains its food - The virus consumes part of the body or materials that the body uses - The virus replicates and spreads - The virus causes symptoms in the body as the immune system tries to expel the virus.  What might be the first step of the process?
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The answer is:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Contact is made with a virus