Download Commensalism and Parasitism

Commensalism and
Parasitism
By: Rylie Occhipinto, Brett Johnson, Jacob Bruen and
Zeth Rios
Commensalism
 One organism benefits while the other is not affected.
 Commensalism is most common in ocean ecosystems.
 Most of the time the species that benefits is smaller than the
species it partners with.
 An example of commensalism is barnacles and whales. The
barnacles live on the whale it benefits them while it doesn’t
affect the whale.
Parasitism
 One organisms benefits while the other organism is harmed.
 Parasites are often tiny organisms that feed off, and weaken,
their hosts.
 Parasites such as lice, ticks and mites live on the outside of
the host unlike tapeworms and ringworms who live inside of
you.
 An example of parasitism is fleas and dogs. The flea
attaches to the dog and feeds on its blood.