Across
- 5. A state of lowered body activity some animals go through in winter months
- 7. Natural Selection occurs over many _____
- 10. A part of some plants that grows underground. It is used as food(energy) storage for the plant during cold seasons
- 11. ______________ adaptations are ACTIONS organisms do for survival
- 12. Ability of an organism to survive and reproduce in its environment
- 14. Differences in traits in a population of organisms
- 17. A _____ key helps scientists identify and classify organisms based on likenesses and differences
- 19. To _____ means to change
- 20. Another term for selective breeding
- 21. Charles _____ was an English scientist who developed the Theory of Evolution by observing bird beaks
- 22. The deliberate breeding of plant or animals for desired traits
Down
- 1. The movement of animals bases on seasonal temperature change
- 2. _____ might use selective breeding to increase the amount of food their crops produce
- 3. Both NS and SB allow a species to _____ over a period of time
- 4. The process by which organisms with traits best suited for their environment are more likely to survive and reproduce
- 6. Most birds have _____ _____ to make them lightweight for flying
- 8. A structure of fish that allows to survive by taking oxygen through the water
- 9. Darwin observed adaptations on these islands
- 13. An adaptation that is a physical feature of the organism
- 15. Bird beaks vary in size and shape, depending on the _____ available in their environment
- 16. A error when DNA is copied during reproduction, it causes a change in the organism
- 18. Blending in with the environment to avoid detection
