Across
- 2. the ability to be maintained at a certain rate or level
- 6. number of species in a specific area
- 8. all of the populations in the same area
- 9. group of the same kind of cells
- 11. stays the same within the experiment
- 15. energy flow through an ecosystem
- 20. contain carbon
- 23. what changes because of what i did
- 24. track distribution of different ages
- 25. contain only carbon and hydrogen
- 28. protect the species in the area
- 31. direct economic benefit
- 32. group of organs that work together
Down
- 1. six main elements in our bodies
- 3. recreational, inspirational, or spiritual
- 4. what i change
- 5. same type of matter
- 7. two or more elements chemically bonded to make a new substance
- 10. table, graph, chart
- 12. abiotic and biotic factors in an area
- 13. individual with more than one organ system
- 14. same element with a different mass
- 16. structure made of one or more tissues
- 17. change over time
- 18. things that can change
- 19. radioactive isotopes
- 21. our obligation to allow life to continue in an area
- 22. standard for comparison
- 26. part of earth where life exists
- 27. basic unit
- 29. anything that has mass and takes up space
- 30. similar ecosystems with similar environments