Symbiosis- is a close ecological relationship between the individuals of two (or more) different species.
One example could be the birds cleaning out the teeth of the alligators.
Commensionlism
Example 2
Next example could be Lichens that are associated with fungus and algae. The fungus gives the algae a tough, waterproof body that is able to survive in extreme environments on rocks and tree trunks. It is also helpful at obtaining water and types of acids to dissolve minerals from the rocks. It also helps the algae by producing carbon dioxide so the algae can use photosynthesis.
Mutualism
Mutualism
Example 3
Another example could be the kelp producing for the fish so they can grow
Parasitism
Parasitism