Biological Succession
Primary vs. Secondary
Can a plant actually grow in hardened lava?
Watch this video about how life began on the Hawaiian islands...thanks volcanoes!
http://tnlearn.pbslearningmedia.org/asset/ess05_vid_newland/
http://www.ck12.org/biology/Succession/lesson/Succession/?referrer=concept_details
What's the difference between primary and secondary succession? Lets find out.
Watch this video clip that discusses the major differences between the two types of succession.