interaction between two different living organisms
An interaction that is beneficial to both organisms involved
The clownfish has a safe place to live and the sea anemones are saved by the clownfish from being eaten by their predators, the butterfly fish.
An association between two organisms in which one benefits and the other derives neither benefit nor harm
Whales and Barnicles
A non-mutual symbiotic relationship between species, where one species, the parasite, benefits at the expense of the other, the host.
Fleas and Mosquitos feed on the blood of other organisms for its benfits