A sudden shift in the tectonic plates of the earth
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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:
to avoid a general collapse of the system (eventually caused by the failure of the local organs)
Explanation:
An organ system can be defined as a group of organs that work together as a unit in order to perform a particular function. In an organ system, each organ has specific functions and is composed of different tissues that in turn have specialized tasks. Organ systems include, among others, the cardiovascular system, respiratory system, digestive system, urinary system, skeletal system, endocrine system, nervous system, etc.
Some species cell division produces reproductive cells in sexually reproduce organisms
