What is the purpose of interphase in the cell cycle? active growth and metabolism of the cell active cell growth and cytokinesis active division of the plasma membrane before mitosis

Nitrogen-14 and nitrogen-15 are isotopes of the same element. how do these two isotopes differ? a. they have different numbers of nuclei. b. they have different numbers of protons. c. they have different numbers of neutrons. d. they have different numbers of electrons.