AP Biology Embedded Videos

Paul Andersen | Homeostatic Evolution

User Rating:  / 0
PoorBest 

021 - Homeostatic Mechanisms Reflect Evolution - Paul Andersen shows how homeostasis reflects of evolution through time. The endocrine system shows continuity through flatworms, earthworms and vertebrates. However the respiratory system shows change as organisms move onto land. The importance of the Tiktaalik fossil as a transitional fossil is emphasized.

 

Mail this page

Email this page to a friend
module by Spiral