explain or give a site
What is a mass extinction? List when each of the five largest mass extinctions occurred. What are some mechanisms that have been proposed as causes of mass extinctions?

Question

explain or give a site
What is a mass extinction? List when each of the five largest mass extinctions occurred. What are some mechanisms that have been proposed as causes of mass extinctions?

anonymous · Answer

Its not given in your book?

anonymous · Answer

Its gonna be loooooong description... So im giving you this site. http://mindblowingscience.com/science-by-numbers/the-5-major-mass-extinction-events/

anonymous · Answer

http://bytesizebio.net/index.php/2009/02/12/blog-for-darwin-on-mass-extinctions/ and this one..

anonymous · Answer

Now find out your answers yourself :)

anonymous · Answer

http://www.mysterium.com/extinction.html http://www.bbc.co.uk/nature/extinction_events

anonymous · Answer

http://www.endangeredspeciesinternational.org/overview.html