1. Interactions Among Living Things

2. Predation
An interaction in which one organism kills another for food.

3. Predator
The organism that does the killing.

4. Prey
The organism that is killed.

5. Symbiosis
A close relationship between two species that benefits at least one of the species.

6. Mutualism
A relationship in which both species benefit.

7. http://animalsymbiosis. weebly

8. Commensalism
A relationship in which one species benefits and the other species is neither helped nor harmed.

9. http://thebiomedesert. weebly

10. Parasitism
Involves one organism living on or inside another organism and harming it.
Parasite – the organism that benefits
Host – the organism it lives on or in

12. Examples Pictures of Symbiotic Relationships
Types of Interactions Quiz