A researcher uses a new growth (chemically-defined) medium but that no bacteria grows regardless of which organisms are inoculated in it. What is not in the medium? Sucrose, Amino acids, carbon source or lipids (choose one only)

Amino acids

Explanation:

Cuz they don't have bacteria

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds