Lecture 6 animal evolution the vertebrates
This presentation is the property of its rightful owner.
Sponsored Links
1 / 3

Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES PowerPoint PPT Presentation


  • 57 Views
  • Uploaded on
  • Presentation posted in: General

Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES. Amniotes . The first invertebrates to adapt to dry habitats. The only vertebrates that produce eggs with four membranes: these membranes conserve water; protect the developing embryo before hatching or being born. Have dry, tough or scaly skin.

Download Presentation

Lecture 6 ANIMAL EVOLUTION: THE VERTEBRATES

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Lecture 6 animal evolution the vertebrates

Lecture 6ANIMAL EVOLUTION: THE VERTEBRATES


Amniotes

Amniotes

  • The first invertebrates to adapt to dry habitats.

  • The only vertebrates that produce eggs with four membranes:

    • these membranes conserve water; protect the developing embryo before hatching or being born.

  • Have dry, tough or scaly skin.

  • Active lifestyles


Two major groups of amniotes

Two Major Groups of Amniotes

  • Synapsids (the early branches)

    • mammals and their extinct relatives

  • Sauropsids

    • reptiles and birds.


  • Login