Across
- 2. all the genes in the entire population
- 4. Energy of motion
- 9. Newton's first law
- 11. change in position of an object & direction
- 12. desirable traits in plants/animals
- 14. rate of change of speed
- 17. believed in evolutionary change
- 18. a bird Darwin studied the beak of
- 19. the evolution of a new species
Down
- 1. these float on & travel over the mantle
- 3. single land mass 200million years ago
- 5. when populations adapt and change
- 6. group of species in a particular area
- 7. collected specimens in tropical regions
- 8. the remains of living organisms
- 10. Newton's third law
- 13. an English naturalist and geologist
- 15. the change of a population over generations
- 16. speed in a particular direction