Across
- 2. This French naturalist believed that organisms changed form over generations through the inheritance of acquired characteristics
- 5. What speciation occurs when individuals are separated geographically and over time can't reproduce with one another.
- 8. This type of Selection occurs when one extreme of the population has a better chance to survive than the other
- 9. A population of deer was threatened with overpopulation until cheetahs were imported. After a couple of years there were fewer deer but the average running speed of the deer had increased. This is an an example of:
- 10. Which organism on the Galapagos Island that most influenced Darwin to develop the Theory of Natural Selection?
- 11. Habitat loss is dangerous to a species because it can result in what type of effect?
- 13. In ocean-dwelling creatures like corals, sperm and eggs are released into the water and fertilization occurs externally. If several closely related species or coral live in the same location, which reproductive isolating mechanism is likely to be effective at preventing species interbreeding?
- 14. This type of Selection occurs when the extremes of the population have a lesser chance to survive
- 16. Structures such as a bat wing and whale flipper have the same underlying structure due to inheritance from a common ancester
- 19. The movement of gene types from one population to another is called
Down
- 1. This type of Selection occurs when the extremes of the population have a better chance to survive
- 3. Using the ratio of Uranium to Lead to date the age of a fossil or rock sample is called
- 4. In the scientific name the second name is the what?
- 6. All genes in a population
- 7. Who formed the Theory of Natural Selection?
- 8. all living things have
- 12. In the scientific name the first name is the what?
- 15. A principle supported by many lines of evidence
- 17. Which process is the only way to introduce NEW gene types into a species?
- 18. This scientist was among the first to state that geological forces still operating could account for the changes geologists see in the Earth's surface.
