If the light-independent reaction can run without light, why does oxygen production (and presumably glucose production) stop?

The third stage of cellular respiration is (2 points)

Which label correctly identifies what x represents in the concept map?

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.