Evolution
Across
- 3. New layers of sediment that cover older ones, and compresses them into superimposed layers of rock.
- 6. The idea that parts that of the body that are used extensively, become larger and stronger, while those who are not used, tend to deteriorate.
- 8. The transfer of alleles from one population to another, resulting from the movement of fertile individuals, or their gametes.
- 11. Organisms, who are a potent force.
- 12. It’s not the individual, but rather the ________ that evolves.
- 16. A process in which events, cause unpredictable fluctuations in allele frequencies, from one generation to the next.
- 17. An evolutionary process in which one species splits into two or more species.
- 19. Condition describing a nonevolving population, one that is in genetic equilibrium.
- 21. A type of natural selection that occurs when a phenotype is favored between the individuals, and is going to give an advantage to the individual.
- 23. The study of fossils.
- 24. An English biologist, who argued that there is unity in life because all organisms descent from an ancestor that lived in the remote past.
- 26. Selection Natural Selection, in which the majority or intermediate phenotypes, survive, or reproduce more successfully, than the extreme phenotypes.
- 29. Underlying or basic skeletal structure, in different species, that represent variations from a common structural heme, that was present in their common ancestor.
- 31. selection Selection favors the formation of two distinct genes or alleles, causing a shift towards the extremes or the minority.
- 33. Mechanics of change are constant over time, meaning that the same geologic process of the past is operating now.
- 34. that share similar characteristics, as the result of convergent evolution, not homology.
- 35. A process by which humans have modified species over many generations by selecting and breeding individuals that possess desired traits.
Down
- 1. Mechanisms that produce the observed pattern of change, or the natural causes of the natural phenomena observable.
- 2. Facts and observations about the natural world.
- 4. A Swedish physician and botanist who developed the binomial system of naming species, which is still used by scientists.
- 5. Characteristics of organisms that enhance their survival and reproduction in specific environments.
- 7. Speciation, where there is no physical barriers to
- 9. A change in a population over time, which occurs by a modification in a descendant, which in other words, suggests the idea that living species are descendants of ancestral species that were different from the actual ones.
- 10. The independent evolution of similar features in different lineages.
- 13. A diagram, which resulted from a resemblance between certain species, showing the evolutionary interrelations of a group of organisms derived from a common ancestral form, which shows the pattern of evolution.
- 14. The principle that events in the past occurred suddenly and were caused by mechanisms different from those operating in the present.
- 15. Evolution Species that originate from a common ancestor, but due to cataclysmic disasters, one allele is favored, causing a different development in the characteristics of these populations.
- 18. French biologist, who argued that evolution happens due to the innate drive, organisms have to become more complex.
- 20. Speciation that occurs when a population becomes divided into two entirely different isolated populations.
- 22. of acquired characteristics: The idea that an organism could pass on, to their offspring, these modifications.
- 25. A leading geologist of Darwin´s time, who incorporated Hutton´s idea into his principle, which later influenced Darwin´s ideas.
- 27. Selection A process in which individuals that have certain heritable characteristics survive and
- 28. Genetic drift that occurs when a few individuals become isolated from a larger population and form a new population, whose gene pool composition is not as reflective of that of the original population.
- 30. Remains or traces of past organisms, which are found in sedimentary rocks, formed by layers of sediment that settle into the bottom of seas, lakes, and swamps.
- 32. Cuvier Scientist who developed Paleontology, and stated that every boundary represented a new catastrophe.