Ecological Interactions, biological issues assignment help

Go to the following links regarding the interactions within an ecosystem (types of symbiosis):

http://www.vtaide.com/png/symbiosis.htm

http://www.ms-starship.com/sciencenew/symbiosis.htm

http://www.doesgodexist.org/MayJun00/CactusAndLizardSymbiosis.html

Once you have read through the sites and understand the interactions, see if you can find any local examples of any of the types of symbiosis and list them.

Why are these types of interactions important to the well-bing of any ecosystem?

Comment on the hypothesis found in the last site.