In biotechnology, the process of introducing the foreing DNA into a cell by a virus is called transduction.Gene therapy is one of the purposes of this process.
Sedimentary would be correct because fossils are formed by the burial of sediments!
Easy science. The key factor is a smooth surface, because rough surfaces scatter light instead of reflecting it. When photons — rays of light — coming from an object (your smiling face, for example) strike the smooth surface of a mirror, they bounce back at the same angle. Your eyes see these reflected photons as a mirror image.
