Agas made up of three oxygen molecules bonded together

Which of the following statements is true? 1. the mantle of the earth is made of solid nickel and iron. 2. the crust of the earth is made of solid nickel and iron. 3. the inner core is made of solid nickel and iron.

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge

The data below simulate what happened to peppered moths in england after the industrial revolution which statement best describes the process that produced one of the emding populations of moths ?light colored moths were selected for on light colored trees