Across
- 3. an interaction between two organisms in which one of them benefits but the other isn't affected
- 5. a term used to describe a species that has not been seen in the wild for over 50 years, and of which the last known individual has died
- 6. regular burning to reduce the amount of fuel available for a fire.
- 9. an organism able to manufacture its own food; plants are producer organisms
- 10. raised bank built to prevent water reaching buildings.
- 11. a scientist who studies the growing of plants
- 15. native vegetation that remains unchanged when surrounding areas have been changed by activities such as grazing or forestry
- 18. a number of food chains combined
- 19. the place where all known life exists; consists of earth and its atmosphere
- 20. organism that must eat other organisms to get the energy and nutrients they need; animals are consumer organisms
- 21. a consumer that eats a first order consumer
Down
- 1. organisms that have the same food source and live in the same habitat
- 2. living factors in the environment
- 4. a consumer that eats a producer
- 7. The process used by plants to make their own food
- 8. all living things
- 12. the term used to describe different types of living things
- 13. a consumer that only eats other animals
- 14. depending on each other for survival
- 16. individuals that are exactly the same as each other.
- 17. a consumer that eats a second order consumer