1. L3: Ecological Relationships
Learning Objectives:
Describe different ecological relationships between organisms.
Explain the symbiotic relationships of mutualism, parasitism, and commensalism.

2. Relationships Competition Predation Symbiosis Mutualism Commensalism
Parasitism

3. Competition – when organisms both rely on the same resource (example: food)
Predation – when one organism eats another
Symbiosis – close, unique relationship between two organisms
Mutualism – symbiotic relationship when both organisms benefit
Commensalism – symbiotic relationship when one organism benefits and the other is not harmed
Parasitism – symbiotic relationship when one organism benefits while harming the other

4. Activity: Identify the type of ecological relationship
We are going to watch a series of videos.
Identify which type of ecological relationship is being shown.
What is the ecological relationship between the monk seal and the octopus/eel/trigger fish? 
What is the ecological relationship between the monk seal and the jacks/sharks? 

5. Activity: Identify the type of ecological relationship
We are going to watch a series of videos.
Identify which type of ecological relationship is being shown.
What is the ecological relationship between the monk seal and the octopus/eel/trigger fish?  Predator/prey
What is the ecological relationship between the monk seal and the jacks/sharks?  competition

6. Activity: Identify the type of symbiotic relationship
We are going to watch a series of videos.
Identify which type of symbiotic relationship is being shown.
Mutualism
Commensalism
Parasitism

7. Complete the worksheet