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Handout
Wikimedia

Wikipedia: Collusion

For Students 9th - 10th
Provides a definition and many examples of collusion, along with obstacles facing a successful collusive agreement.
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Handout
Open Door Team

Open Door: Ecosystem: An Inter Acting Community: Competition Between Organisms

For Students 4th - 8th
This short article discusses competition for resources and survival within an ecological system.
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Unit Plan
Sophia Learning

Sophia: Limiting Factor: Lesson 2

For Students 9th - 10th
This lesson will explain how a limiting factor effects the size of a polulation. It is 2 of 4 in the series titled "Limiting Factor."
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Unit Plan
Sophia Learning

Sophia: Limiting Factor: Lesson 3

For Students 9th - 10th
This lesson will explain how a limiting factor effects the size of a population. It is 3 of 4 in the series titled "Limiting Factor."
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PPT
Sophia Learning

Sophia: Limiting Factor: Lesson 4

For Students 9th - 10th
This lesson will explain how a limiting factor effects the size of a population. It is 4 of 4 in the series titled "Limiting Factor."
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Unit Plan
CK-12 Foundation

Ck 12: Biology: Interdependence of Living Things

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Covers how species interact with each other.
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Unit Plan
CK-12 Foundation

Ck 12: Biology: Competition

For Students 9th - 10th
[Free Registration/Login may be required to access all resource tools.] Describes how interspecific competition affects extinction and specialization.
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Activity
Tutor2u

Tutor2u: Oligopoly

For Students 9th - 10th
This site lists the characteristics of an oligopoly, and discusses price competition, non-price competition, and price leadership.
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Website
Ducksters

Ducksters: Soccer: Glossary of Terms and Definitions

For Students 1st - 9th
Meaning of terms used in the sport of soccer. Position names described.
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Handout
Science Struck

Science Struck: 12 Lesser Known Examples of Intraspecific Competition

For Students 4th - 8th
Explains what intraspecific competition is and gives examples.
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Handout
BiologyWise

Biology Wise: Competitive Exclusion Principle

For Students 9th - 10th
The concept of competitive exclusion, explained here, states that two species cannot co-exist when needing the same, limited resources to survive. The different types are described and examples are provided.
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Website
Ducksters

Ducksters: Baseball: Learn All About the Sport Baseball

For Students 1st - 9th
Find out about baseball player positions, rules, terms, and strategy of the game on this webpage.
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Handout
Victorian Web

Brown University: Victorian Web: Adam Smith's Laissez Faire Policies

For Students 9th - 10th
Victorian Web provides an essay on the Laissez-Faire Policies of Adam Smith. He believed the government should not interfere with business.
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Graphic
Curated OER

Model of Monopolistic Competition

For Students 9th - 10th
This site uses an example of "pushcarts on the beach" to demonstrate a monopolistically competitive market structure and how as more firms enter the market, price, quantity, and deadweight loss are all effected.