I think format? or formula?
If a star is located 100 light years from earth the light will tack 100 years to reach earth I hope I helped you and good luck
Bacteria cells have no what? They have no nucleus.
Phospholipids make up an important class if lipids for the construction of cell membranes. The phospholipids are not "true fats" because they have one of the fatty acids replaced by a phosphate group.
