Symbiosis and Ecosystems
Grade 10th Grade · Science · 45 min
What's Included
Learning Objective
I can analyze how symbiotic relationships affect populations in an ecosystem.
Warm-Up Video
Amoeba Sisters · 6:50
Ecological Relationships
Guided Notes
3 key concepts
- 1
In a predator-prey relationship, the predator population tends to increase when the prey population increases, but may decrease if the predator population becomes too large.
- 2
Competition occurs when different species or individuals within a species compete for the same limiting resources, such as food or light.
- 3
In mutualism, both organisms benefit; in parasitism, one organism benefits and the other is harmed; and in commensalism, one organism benefits and the other is neither helped nor harmed.
Practice Questions
9 questions · Multiple choice
Exit Ticket
Quick comprehension check
“Explain how a parasitic relationship, such as fleas on a dog, can affect the populations of both the parasite (fleas) and the host (dog) in an ecosystem.”
Complete Lesson Package
Get all 3 ready-to-use resources:
