Across
- 5. a person with 2 color vision
- 7. physical characteristics of an organism
- 10. a person with 3 color vision
- 11. biological differences; the sum total of the variety of organisms in the biosphere
- 13. an organism that captures and feeds on another organism
- 15. process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival on the fittest
- 16. group of individuals of the same species that live in the same area
- 17. change in a DNA sequence that affects genetic information and can change the phenotype of an organism
- 19. a necessity of life, such as water nutrients, light, food, or space
- 22. ability of an organism to survive and reproduce in its environment
Down
- 1. harmful material that can enter the biosphere through the land, air, or water
- 2. process by which cells from two different parents unite to produce the first cell of a new organism
- 3. the area where an organism lives
- 4. inherited characteristic that increases an organism's chance of survival
- 6. plants and animals that have migrated to places where they are not native
- 8. disappearance of a species from all parts of its geographical range
- 9. the study of organisms in their early stage of development
- 12. studied finches on the Galapagos Island and developed a theory of evolution
- 14. change in a kind of organism over time; process by which modern organisms have descended from ancient organisms
- 18. specific characteristic that varies from one individual to another
- 20. average, year-after-year conditions of temperature and precipitation in a particular region
- 21. preserved remains or evidence of an ancient organism