Across
- 5. Type of effect that happens when a small group starts a new population
- 7. When actions or behaviors separate species cause sexual selection
- 9. What Hardy and Weinberg proposed happens when the alleles are not changing
- 10. Term for the number of alleles in a gene pool
- 11. When a single species evolves into several different species, like the finches. ___ radiation.
- 15. Term for species that are so closely tied together they evolve together
- 16. Isolation that caused the difference between organisms separated by mountain ranges, for example
- 21. Type of selection for polygenic traits that occurs when one end of the curve has highest fitness
- 22. Type of structures that show similar traits from organisms with common ancestry
- 24. Selection that occurs when the average of a trait is best
- 25. Structures that were inherited from a common ancestor, but have since lost their function
- 26. Term for when there is change in alleles caused by random chance. Genetic...?
- 27. What happens when reproductive isolation occurs over time.
- 29. Type of extinction that occurs when a vast majority of the population goes extinct at once.
- 30. Effect that occurs when a natural disaster happens and those who survive are random
Down
- 1. Term for polygenic traits that the average is least fit, resulting eventually in separate species
- 2. Evolution that occurs after genetic drift or extinction event, ___ equilibrium.
- 3. Type of evolution showed with slow, small changes over time
- 4. DNA evidence is incredibly useful for ancestry analysis, for example studying mutation rates in a ___ clock.
- 6. Scientist who along with Miller studied the early origins of life when they stimulated early atmosphere and made amino acids
- 8. Type of way to analyze fossil age by comparing them to index fossils
- 10. Term for how well an organism can survive and reproduce in an environment
- 12. Type of mating that must occur for a population to change
- 13. Type of isolation that happens when organisms mate at different times of the year.
- 14. What it is called when small numbers of species die off over time, leaving behind a functional ecosystem.
- 17. Theory on how eukaryotes were formed from a close symbiotic relationship with early prokaryotes.
- 18. Type of dating that is used to tell a more exact age of specimen by looking at radiometric isotopes and half lifes.
- 19. One of the most influential naturalists of our time, whose observations and discoveries led to the theory of evolution and Natural Selection
- 20. Term for what happens when a population changes from immigration or emigration. Gene...?
- 23. One of the first scientists to say species changed over time, but inaccurately used acquired chararacteristics
- 28. Structures that look similar in other species despite different ancestry, example of convergent evolution