Across
- 4. In the last 600 million years there have been _____ major declines in Earth's biodiversity
- 7. Synonym for artificial selection
- 9. Natural selection: Variations increase the chances of an organism surviving to _________
- 13. Technique whereby individual organisms with desirable traits are bred together to develop plants or animals with specific traits (cows that produce large quantities of milk)
- 17. Number of division in mitosis
- 18. Number of division in meiosis
- 19. Name of Darwin's boat
- 20. The extinction of a species from specific geographic areas
- 21. Natural selection: Variations that are passed on lead to changes in the ________ characteristics of a species
- 22. Collection of seeds from plants that are threatened with extinction
- 23. Species who is sensitive to changes in it's environment
- 24. Natural selection: All organisms produce more ________ than can possibly survive
Down
- 1. Sexual reproduction of cells that results in the production of four new genetically different daughter cells (chromosome count is halved from start to end)
- 2. Natural selection: There is incredible __________ within each species
- 3. Another term for a genetically modified organism
- 5. Scientist who proposed and developed natural selection
- 6. The artificial introduction of genes from one organism into the genetic material of another
- 8. Hormone in the body that lowers the level of glucose in the blood
- 10. Using or modifying living organisms to make marketable products
- 11. Asexual reproduction of cells that results in the production of two identical daughter cells (chromosome count is the same at the start and at the end)
- 12. Insect that was predominantly light coloured prior to the Industrial Revolution
- 13. Fish farming
- 14. Species that no longer exists on Earth
- 15. Global ________ have been drawn up to protect endangered plants and animals
- 16. Evolutionary process whereby organisms best adapted to their environment will survive and reproduce