1 / 16

Evolution Flashcard Review

Evolution Flashcard Review. The forelimb of a dog when compared to the flipper of a whale are examples of…. Homologous structures Divergent evolution. The wings of a butterfly when compared to a bird are examples of:. Analogous structures Convergent evolution.

tirzah
Télécharger la présentation

Evolution Flashcard Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Evolution Flashcard Review

  2. The forelimb of a dog when compared to the flipper of a whale are examples of… • Homologous structures • Divergent evolution

  3. The wings of a butterfly when compared to a bird are examples of: • Analogous structures • Convergent evolution

  4. Structures that were functional in an organisms ancestors but have lost their use because they are no longer needed are called… • Vestigial organs • Our appendix is an example.

  5. Slight differences in the speckled kingsnake of Texas and the Desert Kingsnake of New Mexico are the result of: • Geographic isolation • This also happened to Darwin’s finches when they flew to different islands.

  6. Differences in divergent species is usually the result of differences in the… • environment they live in. • For instance beak shape might be related to food types.

  7. The fact that chimps amino acids sequences are 99% similar to human amino acids sequences indicates… They are closely related. More differences means less related.

  8. A behavior or physical characteristic that allows an organism a better chance to survive is called… • An adaptation.

  9. What evidence can be used to indicate that two organisms had common ancestors? • DNA and other biochemical similarities. • Homologous structures. • Similar embryonic development. • Vestigial organs.

  10. In a cladogram, homology is shown when organisms are found on the same tree. How can we tell which organisms are most closely related? • They are found on the same branches or branches close by.

  11. The theory that states that prokaryotic cells formed symbiotic relationships and evolved into eukaryotic cells is called… • The endosymbiont hypothesis

  12. What is behavioral isolation? • Organisms of the same species but from different populations do not recognize or understand each others behavioral intentions because they evolved in different places. • Ex. The Canadian wolf approaches the Yellowstone wolves and his body language confuses them causing them to attack.

  13. What is the difference between natural selection and evolution? • Natural selection leads to evolution. • Natural selection acts on individuals and their genes. • Evolution involves changes in entire populations of organisms. • Ex. A deer may have a mutation that gives it antlers is natural selection. The antler trait spreading out to the rest of the deer is evolution.

  14. The movement of individuals with specific traits from one location to another carrying the alleles for those traits to other populations is called… • Gene flow. • Example: wolves from Canada travel across the mountains to Yellow Stone Nat. park and increase the park wolves genetic diversity.

  15. In the fossil record, the oldest bones are found…. • Deeper in the ground. • This allows scientist to observe the evolution of a species over time.

  16. What is homology? • Common ancestry

More Related