Obligate intracellular parasites, viruses; A.)undergo self-reproduction and after exit from the host cell. B.) gather energy, in the form of ATP from the host, to remain alive. C.)upon insertion into the cell, join their RNA to the host cell nuclear DNA. D.)hijack host machinery to synthesize components for assembly of new virus particles. .

1. Obligate intracellular parasites, viruses;
A.)undergo self-reproduction and after exit from the host cell.
B.) gather energy, in the form of ATP from the host, to remain alive.
C.)upon insertion into the cell, join their RNA to the host cell nuclear DNA.
D.)hijack host machinery to synthesize components for assembly of new virus particles.