Biology: Living Systems

In The News
Select a Chapter
BSCS Biology
Glencoe Online
Science Home Product Information Site Map Search Contact Us
Web Links

Print this Web Links Activity Log to record your findings. In order to view and print these activities, it is necessary to have Adobe Acrobat Reader. If you do not have this, get the free download now.

Get Acrobat Reader (Link)

 
Click the Techie Toolbox for tips and help to make the most of your time on the Web.
Chapter 28: Ecosystems 
Ecological Pyramids
This site defines different types of ecological pyramids and explains how energy is lost at each level. What are the three different types of ecological pyramids? How are these pyramids different?

Lichens
Lichens are a combination of two organisms; a fungus and an alga or cyanobacterium. Explore this site to learn more about lichens. What is the most serious threat to lichens?

 
 
The McGraw-Hill Companies
Biology: Living Systems