1 / 5

Environmental Considerations for Adaptations by: Kevin Gusé

Environmental Considerations for Adaptations by: Kevin Gusé. Environmental considerations for Natural Selection. Survival is often based on the traits present within an environment. Some traits can be seen to be selected for over time if environmental constraints act on those traits.

mirra
Download Presentation

Environmental Considerations for Adaptations by: Kevin Gusé

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. Environmental Considerations for Adaptationsby: Kevin Gusé

  2. Environmental considerations for Natural Selection • Survival is often based on the traits present within an environment. • Some traits can be seen to be selected for over time if environmental constraints act on those traits.

  3. Adaptations • Organisms best suited for their environment pass on their genes to the next generation • Ex. Moth coloration (Ketterwell) • Ex. Panda’s thumb • Changes in the frequency of traits over generations can be explained by violating the Hardy-Weinberg Rules (next week)

  4. Order: Primates • Characteristics: hands & feet for grasping; relatively large brains • Suborder: Prosimii • lemurs, tarsiers • Suborder: Anthropoidea • monkeys, apes, humans (opposable thumb) • Paleoanthropology: study of human origins

  5. How useful is your thumb? • Today’s investigation looks at every day tasks and the use of the opposable thumb in doing those tasks.

More Related