Chapter 24 The Origin of Species Lecture Outline Overview: That ?Mystery of Mysteries? Darwin visited the Gal?pagos Islands and found them filled with plants and animals that lived nowhere else in the world. He realized that he was observing newly emerged species on these young islands. Speciation?the origin of new species?is at the focal point of evolutionary theory because the appearance of new species is the source of biological diversity. Microevolution is the study of adaptive change in a population. Macroevolution addresses evolutionary changes above the species level. It deals with questions such as the appearance of evolutionary novelties (e.g., feathers and flight in birds) that can be used to define higher taxa.
Chapter 24 The Origin of Species Lecture Outline
Chapter 24 The Origin of Species Lecture Outline Overview: That ?Mystery of Mysteries? Darwin visited the Gal?pagos Islands and found them filled with plants and animals that lived nowhere else in the world. He realized that he was observing newly emerged species on these young islands. Speciation?the origin of new species?is at the focal point of evolutionary theory because the appearance of new species is the source of biological diversity. Microevolution is the study of adaptive change in a population. Macroevolution addresses evolutionary changes above the species level. It deals with questions such as the appearance of evolutionary novelties (e.g., feathers and flight in birds) that can be used to define higher taxa.
Need Help?
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
Need Notes?
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!