Dependence (mutualism, + / +).
It is the relationship of two creatures together. By the benefit both parties and both.
Can"t be separated if separated one party or both parties will die, for example.
- termites and protozoa in the intestines, the name trichonympha termites eat, but digest cellulose termites eat. แต่ย่ to cellulose.
Not so in the intestinal protozoa digest cellulose in wood termites and termite.
- lichens (lichenhs) is the association of mold and algae by algae serves is the association of mold and algae by algae serves.
Create food by means of photosynthesis And gain relief to build up the fungus food from algae.