Biosphere Crossword

4. a close relationship between two organisms that benefits at least one of the species.
6. the process that all living things go through to create the energy they need to live.
8. a biological community of interacting organisms and their physical environment.
11. the series of predictable changes that occur in a community over time.
13. the type of symbiosis where both species benefit.
14. the largest population an area can support.
15. a process by sunlight energy is changed inside a plant into chemical energy.
17. an organism capable of producing its own food.
18. an organism that eats both plants and animals.
21. the type of symbiosis where one organism benefits and the other is not affected.
22. the cellular powerhouse and the organelle where energy production occurs.
23. an organism that only eats foods of plant origins.
24. behaviors/physical characteristics that help organisms survive in their environments.
25. an organism that only eats foods of animal origin.
26. the praying of one animal on others.
27. an animal that feeds on carrion, dead animal, dead plant material, or refuse.

1. ingredients needed to perform a task.
2. the act of settling permanently in a new home.
3. regions of the Earth occupied by different ecosystems.
5. something that prevents a population from growing.
7. a group of organisms of different populations living in the same habitat.
9. species that are the first to come to a disrupted or damaged ecosystem.
10. where one organism lives inside another and takes the others nutrition.
12. specific versions of organisms that have differences from other versions.
16. the plant organelle that performs photosynthesis.
19. the act of leaving home.
20. an organism that gets food and nutrition by eating other organisms.
26. what are produced from a reaction.