sgf
Across
- 7. How often a genotype appears in a population. (2 words)
- 8. __ refers to some factor in nature, like temperature, will determine that some traits are more beneficial. (2 words)
- 9. The process of a new species forming due to the buildup of adaptations between two populations.
- 10. Evolution can only happen to __ because Evolution examines genetic changes over time in a group, not an individual.
- 11. The random change in allele frequency that can result from natural disasters. (2 words)
- 12. A significant reduction in the population of a species due to disease or natural disasters, drastically altering the species' gene pool.
- 14. The scientists that theorized about how one species can lead to multiple new species evolving over time.
- 15. The movement of organisms in/out of a population which can change the allele frequencies of that population.
- 18. A process where two unrelated species affect the evolution of one another due to having close/important interactions in the same physical environment.
- 19. The reason variation exists in a population is because of __.
- 20. Evidence of Evolution that is highly valid due to examining the DNA/Protein sequences of organisms. (2 words)
- 21. The scientist/economist that theorized the environment could put pressure on a population, causing some organisms to die by examining how food supplies impact humanity.
- 26. A large scale process that examines how allele frequencies (genotypes) change in a population over time due to things like mutations, natural selection & migration.
- 29. The scientist responsible for developing the Theory of Evolution we have today.
- 30. Male birds dancing to attract females for reproductive purposes is an example of __. (2 words)
- 31. Wolves hunting in large groups is an example of a __ adaptation.
- 32. The scientists who theorized evolution occurred through response to stimuli.
- 34. An eagle with sharp talons for catching prey is an example of a __ adaptation.
- 35. A process used by humans throughout our history to make wild organisms more usable for ourselves.
Down
- 1. A trait that helps an organism survive and reproduce.
- 2. The theory of evolution is __ and has led to the collection of a large body of evidence through direct observation and experimentation.
- 3. Darwin performed __ experiments after his voyage to gather direct observational evidence that organism's physical appearance can change over time. (2 words)
- 4. Evidence of Evolution that examines the physical structures between organisms to check for similarities, which imply closely related ancestry. (2 words)
- 5. The location made famous by Charles Darwin, where he observed tortoises and finches to gather evidence. (2 words)
- 6. __ occurs when two unrelated species develop analogous structures due to living in similar environments, but different locations. (2 words)
- 13. Remnants of organisms in rock, a major source of evidence for evolution.
- 16. When two populations are incapable of mating due to physical separation, __ prevents mutations from spreading between the populations leading to unique evolutionary paths in each population. (2 words)
- 17. Two organisms with __ structures implies they share a common ancestor due to the similar internal structure of their bodies.
- 22. Darwin theorized that finch species found on the Galapagos Islands were __ of those on mainland South America.
- 23. Darwin noticed that species physical features allowed the organism to be __ for its specific environment, making it more successful.
- 24. A phrase that means an organism is well adapted to its environment.
- 25. Evidence of evolution that examines how physically separating members of a population can lead to the buildup of adaptations and ultimately speciation.
- 27. An event that can drastically change an environment and speed up the rate of speciation and evolution. (2 words)
- 28. A snake that uses venom to kill its prey is an example of a __ adaptation.
- 33. Two organisms with an appendage that they use for the same purpose but internally have incredibly different structures have __ structures and are not closely related.