1. Interactions
Chapter 2
Section 2

2. Interactions of living things
Organisms interact in different ways.
Many interactions between organisms in an ecosystem involve food.

3. 1. Predator/prey Predator: An animal that eats another.
Prey: An animal that is eaten by a predator.

4. 2. Competition
Competition: The struggle between individuals or different populations for a limited resource.

6. 3. Cooperation
Cooperation: An interaction in which organisms work in a way that benefits them all.
technology_and_science- science/t/dolphins-help-fishermen-catch- fish

7. Symbiosis
Symbiosis: The interaction between individuals from two different species that live closely together.
Read page 58 to learn about the 3 types of Symbiosis:

8. 4. Mutualism
Mutualism: An interaction between two species that benefits both.

9. 5. Commensalism
Commensalism: A relationship between two species in which one species benefits while the other is not affected.

10. 6. Parasitism
Parasitism: A relationship between two species in which one species benefits while the species it depends on, its host, is harmed.

11. Assignment in your notes
6 interactions…….
List them (they are in your notes and numbered)
Write the name of each and then a real-life example
Homework: 2.2 worksheet