Different types of relationships exist among organisms, including positive interactions like mutualism and commensalism where both or one organism benefits, and negative interactions like predation and parasitism where one organism benefits and the other is harmed. Positive relationships help ensure organisms have access to food and living space, while negative relationships are categorized based on whether effects on the organisms are beneficial or harmful.

2. NAME OF THE STUDENT TEACHER:JAYARANJINI.R
CANDIDATE CODE : 13373008
OPTIONAL SUBJECT : NATURAL SCIENCE

3. DIFFERENT TYPES OF RELATIONS
AMONG ORGANISMS

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

6. Peculiarity : Two organisms are benefited.

7. Peculiarity : One is benefited and the other is
neither benefited nor harmed.

8. Peculiarity : One is benefited and the other is
harmed.

9. Peculiarity : one is benefited and the other is harmed