Across
- 1. the process of passing through the wall of the intestine or through a cell membrane.
- 3. any living thing
- 5. the process in which complex foods are changed into smaller, simpler foods.
- 7. the process by which plants use light to make food energy.
Down
- 2. the process of oxygen combining with another substance.
- 4. the sum total of all life functions.
- 6. the process of taking in food that is already manufactured.