How does igneous rock form? A. From the cooling of magma or lava B. From the effect of heat or pressure on rock C. From a chemical reaction that changes rock D. From the pressing and cementing of small bits of rock

If a cell's main function is to produce proteins to be excreted, which organelles would you expect to be larger

Which statement describes how favorable traits in a population relate to natural selection? they are the only traits that ever exist in the population. they build in the population over time. they are rarely passed on to offspring. they are found only in a few individuals within the population.

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?