Across
- 5. endorsed authoratitivelyas having met certain standards
- 7. an individual grown from a single body cell
- 9. small cages used to hold serveral hens for a long time
- 10. chemicals that kill insects
- 11. biological variety in an enviroment
- 12. following or agreeing with
- 13. made, produced, or created by human beings
- 17. techniques to manage a pest
- 19. to soil stain or infect
Down
- 1. a substance obtained from a chemical process
- 2. chemicals made in one part of the body
- 3. a substance used to produce better crops
- 4. large pens of livestock
- 6. usually small plastic pieces with hormones
- 8. introducing dna from another species
- 11. insects that perform valued services
- 14. a careful preservation and protection of something
- 15. chemicals used to kill bacteria
- 16. chemicas that kill plants
- 18. the state of wearing away