Answer: entering a host cell and making copies of itself
Viruses reproduce by infecting a host cell, and making it produce copies of a virus instead of antibodies. This is how viruses double in your body.
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Answer:
mitosis
Explanation:
mitosis occurs after DNA in the nucleus has doubled
Answer:
sympathetic nervous system
Explanation:
The sympathetic nervous system functions like a gas pedal in a car. It triggers the fight-or-flight response, providing the body with a burst of energy so that it can respond to perceived dangers.
