Which of the following describes how background research helps in the design of an experiment?

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp

Which gas prevents the spread of fire and extinguishes it? is a type of compressed gas that prevents the spread of fire and extinguishes it.