The images below show different types of evidence that prove Natural Selection is the driving force behind evolution. Use these images, information rom your iBook, and the web to create answers to my questions and learn more about the evidence of Natural Selection. For an added challenge, see if you can match the name of the evidence to it’s illustration (Mouse over the images to see the answer):
Analogous Structure, Homologous Structure, Vestigial Structure, Embryology, Amino Acid (DNA) Sequence, Divergent Evolution, Convergent Evolution, Coevolution, Gradualism, Punctuated Equilibrium, Artificial Selection, Sexual Selection, Founder Effect, Directional Selection, Disruptive Selection, Stabilizing Selection
Why do all of these DIFFERENT animals have the SAME bones?
Who do we SHARE the most DNA with? What does this mean about our Evolution?
Why do these DIFFERENT types of animals have the SAME feature? Does this mean that they are closely related? or does it mean that the trait they share is an advantage in their environment?
If Humans choose the traits they want plants or animals to have is it still natural selection?
Why do these DIFFERENT types of animals look so SIMILAR? Does this mean they are closely related? What do Analogous structures have to do with this type of evolution?
So there was a large population with many variations… but they separated from one another over time…
Are these 2 new species of butterflies or still the same? What will happen over millions of years, will they look more similar or more different?
How come only one individual had a red star in the original population, but almost half have one in the new/resulting population?
Why do humans share more DNA with Mice than chickens? What does this tell us about our evolution?
Whales have legs??? What does this information tell you about Whale ancestors? where did they live? What has happened to the legs over millions of years and why did this happen? Can you think of any human examples of this?
Directional means the POPULATION mean will move toward one extreme.
Stabilizing means the POPULATION mean will move more toward the average.
Disruptive means the POPULATION will have two extremes that have large groups and less in the average. What will happen to this population over time?
Why do human embryos look so similar to fish embryos??? Does this mean we’re related to fish?
does this display help the peacock survive in its environment? or is it just for the ladies?
Compare the two types of evolution… Which one says that catastrophic events cause major changes in the population? How would you describe the other?
Do you think this plant always had flowers perfectly suited to a hummingbird’s beak?