The statement that <span>best explains whether the mass is conserved or not during photosynthesis is that </span><span>It is conserved because the total number of O atoms on each side is 18.
This comes from the Law of Conservation of Mass. It was discovered by Antoine Lavoisier, who is often called "the father of Chemistry". It states that matter is neither created nor destroyed in chemical reactions and that it only changes. In Photosynthesis, the chemical reactions transform the Oxygen in carbon dioxide and water to sugars and molecular oxygen. Have a nice day!</span>
In adults, stem cells remain undifferentiated until they are needed to repair or replace other cells. Stem cells can produce cells that are identical to themselves.
Fossil fuels are the remains of an organism that lived in the past and have been preserved or their impression has been preserved. Fossils are studied to identify the difference (genetic and phenotypic) between past and future related organism and are carbon dated to determine the time in which the organisms existed. The study of fossils is called paleontology.
