Across
- 5. seeing if something is worth it based on how much it costs and how much it benefits you
- 7. inhaling O2, exhaling CO2
- 8. the interaction of organisms when both require the same limited resource
- 9. carbohydrate that makes up plant cell wall
- 10. environmental factors and interspecies relationships that influence the species
Down
- 1. a question that cannot be answered with a yes or no
- 2. breaking down glucose to produce ATP (energy)
- 3. the removal of undigested food material
- 4. number of calories burned (at rest or actively throughout the day)
- 6. contains carbon and hydrogen