The food chain is a system in which food is connected with the ecosystem. Ex:composers, producers, decomposers,etc.
Mitosis is the reproduction of cells
Studying evolutionary relationship among organisms
A mitochondrion is a membrane-bound cell organelle that generate most of the chemical energy (adenosine triphosphate or ATP) for the cell’s biochemical reactions. The energy is produced by the mitochondria and stored in the small ATP molecules.