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3rd Grade Science
Biodiversity
2. Ecosystems
2.3 Communities, Interaction between populations
Discover How Populations Interact in Communities and Ecosystems
You will explore how different groups of living things share space, compete for resources, and help each other survive in an ecosystem community.
What You'll Learn
You will learn what communities and populations are in science.
You can identify predation, competition, mutualism, and parasitism interactions.
You will understand the roles of producers, consumers, and decomposers.
You will see how biodiversity keeps an ecosystem balanced and healthy.
What You'll Practice
1
You will identify predator and prey relationships using food chain diagrams.
2
You will classify interactions like mutualism, parasitism, and competition correctly.
3
You will explain how population changes affect other organisms in communities.
Why This Matters
Understanding how populations interact in communities helps you explain why ecosystems stay balanced and why every living thing including you depends on others to survive.
This Unit Includes
1 Video lesson
Practice exercises
Learning resources
Skills
Predator Prey
Mutualism
Parasitism
Food Chains
Biodiversity
VA Curriculum Aligned