Photosynthetic organisms produce oxygen based on whether light is available for photosynthesis. These orç consume oxygen for cellular respiration in both light and dark environments. In three to five sentences, expla conditions relate to gross and net productivity. (4 points)

Photosynthesis is the process in which light energy is converted to chemical energy in the form of sugars. In a process driven by light energy, glucose molecules (or other sugars) are constructed from water and carbon dioxide, and oxygen is released as a byproduct.

Explanation:

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.