Across
- 1. a diagram that shows how energy in food flows from one organism to another
- 6. a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain
- 7. a relationship in which two different organisms live in close association with each other
- 10. an organism that eats only plants
- 13. a relationship between two species in which one organism benefits while the other is unaffected
- 16. a community of organisms and their abiotic environment
- 19. part of the environment that consists of the nonliving factors, such as water, soil, light, and temperature
- 20. an organism that eats both plants and animals
- 21. a relationship between two species in which one benefits while the host is harmed
Down
- 2. an organism that eats animals
- 3. the part of Earth where life exists
- 4. the study of the interactions of organisms with one another and with their environment
- 5. the evolution of two species that is due to a mutual influence, often in a way that makes the relationship more beneficial to both species
- 8. an organism that is killed and eaten by another organism
- 9. an organism that eats all or part of another organism
- 11. the largest population that an environment can support at any given time
- 12. all the populations of species that live in the same habitat and interact with each other
- 14. a group of organisms of the same species that live in a specific geographical area
- 15. a diagram that shows the feeding relationship between organisms in an ecosystem
- 17. a relationship between two species in which both species benefit
- 18. all of the organisms that live together and interact with one another