Across
- 1. - a relation between organisms in which one lives as a parasite on another
- 5. - a person or organism that provides resources for life, such as food, energy
- 6. environmental change - changes that occur slowly over time and affects organisms over several generations
- 7. - any substance used to fertilize the soil, especially a commercial or chemical manure
- 10. - changes by organisms to better survive changes in an ecosystem
- 11. environmental change - changes that occur quickly in an ecosystem and affect organisms immediately
- 12. Changes
- 13. - the act or capacity of enduring
- 14. reef - a human-made underwater structure built to promote marine life
Down
- 2. population - the population that occurs or comes later or after another
- 3. - microscopic marine algae; the base of several aquatic food webs
- 4. - variation of life within an ecosystem
- 8. species - first organisms to colonize an area that was disturbed by disaster
- 9. on Ocean Systems
