1. Cells come from pre existing cells
2. The cell is the basic unit of life
3. All living things are made of one or more cells.
This are the 3 main ideas of cell theory
Producers have less energy available to them. They have to harness the light to produce energy. Their movement is restricted as a result. Tertiary consumers has the highest amount of energy at their disposal.
During cellular respiration, OXYGEN serves as an electron acceptor and Adenosine triphosphate (ATP) is produced. during photosynthesis, WATER serves as an electron donor and oxygen molecules, hydrogen ions and electrons are produced.