Across
- 4. Producing offspring (children).
- 6. Chemical reactions turning food into energy.
- 7. Keeping balance or a stable environment.
Down
- 1. Getting rid of waste.
- 2. Taking in food and nutrients from the environment.
- 3. Response to internal (inside) and external (outside) stimuli (event of change).
- 5. Moving, changing size or shape.