<span>A retrovirus is anything of a group of RNA viruses that insert a DNA copy of their genome into the host cell to replicate.
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Answer:Igneous rocks are made from cooling of lava or magma.
Another important function of microfilaments is to help divide the cell during mitosis (cell division) microfilaments aid the process of cytokinesis which is when the cell “pinches off” and physically separated into two daughter cells
