Compare and contrast. how do a molecule differ from an atom

A molecule is a group of atoms, while an atom is just one. Basically an atom is an unit composing a molecule. They are both small building blocks of our world that are made of elements.

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When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.