| A | B |
| lipids | fats and oils that make up the cell membrane and store energy |
| carbohydrates | molecule in food that gives us energy |
| ATP | major fuel source for the cell's activities |
| nucleic acid | store information, like DNA |
| protein | molecule used to build and repair body structures |
| Fiber | A complex carbohydrate |
| sugar | A simple carbohydrate |
| producer | organism that makes its own food |
| consumer | organism that must take in food |
| decomposers | get their food by living on dead things and turning them into soil |
| habitat | a place where an organism lives |
| water | organisms are made up of 70% of this |
| oxygen | element in gas that is needed to break down food |
| amino acids | the smaller parts of proteins |