4. Different types of relations are found
among organisms of various type.
These relationships are useful for
ensuring food and space for living. On
the basis of the benefits and harmful
effects of organisms, these relations
can be categorized into two, namely
positive interaction and negative
interaction.
5. 1.Positive Interaction
a. Mutualism b. Commensalism
2.Negative Interaction
a. Prediction b .Parasitism
