All of the following statements about a chloroplast and a mitochondrion are true EXCEPT: A) Both can reproduce through binary fission.
B) Both contain a single looped chromosome.
C) Both carry out photosynthesis.
D) Both are bound by two membranes.

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.