Choose all the answers that apply. What do all cells do? reproduce contain hereditary information have a nucleus break down food into energy have a cell membrane

Compare and contrast physical changes with chemical changes.

Which terms are used to identify pure substances

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.