<span> It is called the Calvin Benison Cycle</span>
It’s actually bacterial DNA
The statement that describes the difference between the 2 isotopes of nitrogen would be the last set.
Nitrogen-14 has 7 electrons, 7 protons, and 7 neutrons
Nitrogen-15 has 7 electrons, 7 protons, and 8 neutrons.
Macromolecules, hope this helps.
D. Lymph nodes are the filtering points throughout the body... found in the lymphatic system