a distant quasar shows a large redhisft -- one so large , in fact, that the features we now see in the visible light region of the spectrum would be invisible to us, were it not for the redshift. What band of the electromagnetic spectrum were these features most likely in, before the spectrumw as redshifted

coil wire, increase current, put iron inside the coil

second mirror gathers light from a faraway object and reflects it to another mirror. - a.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods