| A | B |
| cell membrane | this is in both plant cells and animals, it allows materials to exit and enter |
| respiration | cells get energy through this process |
| tissue | when cells join together they form this |
| mitochondria | the power house of the cell |
| nucleus | contains chromosomes for DNA and is the 'brain of the cell' |
| vacuole | this is the stomach of the cell, it breaks down and stores materials |
| digestive system | this system works with the muscle system to process food |
| muscle system | this works with the skeletal system to move the body |
| skeletal system | this system supports the body and protects organs |
| circulatory system | This system delivers nutrients and blood around the body |
| cell wall | Only plants have this, it protects the cell and is strong |
| organ | when tissues join together they form this, it is most complex |