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Ch 22: CEOE Middle Level Science: Populations & Communities

About This Chapter

Review information about population and communities in this chapter of the CEOE Middle Level Science exam study guide. Video lessons and self-assessment quizzes go over you all you need to know about middle level science for teacher licensure in Oklahoma.

CEOE Middle Level Science: Population and Communities - Chapter Summary

Lessons in this chapter explore population and communities, including survivorship, interspecific competition, and predator/prey interactions. Symbiotic relationships, carrying capacity, and dispersal are also discussed. Additionally, by the end of this chapter, you should be familiar with:

  • Migration and dispersion
  • Island biogeography
  • Conservation biology
  • Ecological succession
  • Introduced and invasive species

Short, engaging video lessons thoroughly explain each subject, and knowledgeable instructors are available to answer any questions you may have. Use the jump feature under the Timeline tab to skip directly to main subjects within the video lessons. Self-assessment quizzes ensure your full understanding and retention of the material.

Population and Communities - Chapter Objectives

The CEOE Middle Level Science exam measures an individual's knowledge of subject matter in accordance with Oklahoma educator licensure regulations. The exam measures foundations of scientific inquiry, life science, physical science, and earth and space science. The material covered in this Population and Communities chapter is tested in the life science portion of the CEOE exam, which comprises about 26% of the entire test. The exam includes approximately 80 multiple-choice questions and one open-response question.

9 Lessons in Chapter 22: CEOE Middle Level Science: Populations & Communities
Test your knowledge with a 30-question chapter practice test
Populations: Density, Survivorship and Life Histories

1. Populations: Density, Survivorship and Life Histories

Have you ever wondered how biologists determine the populations of animals in a particular geographic area? Watch this video lesson to find out, and discover how scientists look at the survivorship and life histories of many different species.

Interspecific Competition, Competitive Exclusion & Niche Differentiation

2. Interspecific Competition, Competitive Exclusion & Niche Differentiation

What happens when two similar species that consume the same resources occupy the same space? Interspecific competition, that's what! Watch our video lesson to learn about the outcomes of this ecological battle.

Predator/Prey Interactions, Camouflage, Mimicry & Warning Coloration

3. Predator/Prey Interactions, Camouflage, Mimicry & Warning Coloration

You probably know that skunks can be quite stinky, bees sting and monarch butterflies are pretty, but do you know why? This lesson will introduce you to the reasons why some animals look or act the way they do and how these things relate to the predator/prey relationship.

Symbiotic Relationships: Mutualism, Commensalism & Parasitism

4. Symbiotic Relationships: Mutualism, Commensalism & Parasitism

If your cat or dog has ever had fleas, you've witnessed symbiosis in action. In this lesson, learn the many types of symbiosis in biology, and how these relationships can have a positive, negative, or neutral effect on the individual species.

Carrying Capacity, Migration & Dispersion

5. Carrying Capacity, Migration & Dispersion

Have you ever wondered why some types of birds fly south in the winter or why some animals form territories? Watch this video to learn about a species' maximum growth capabilities, the way its members group themselves and why they might migrate to new locations every year.

Dispersal, Colonization, and Island Biogeography

6. Dispersal, Colonization, and Island Biogeography

Have you ever gone in your backyard and discovered a wild raspberry bush that has never been there before? How did it get there? Why is there only one bush year after year? In this lesson, you'll study how plant and animal species colonize in new areas through dispersal and immigration and how some species thrive in a new area while others fail.

Conservation Biology, Habitat Fragmentation, and Metapopulations

7. Conservation Biology, Habitat Fragmentation, and Metapopulations

It's becoming harder to conserve large, unbroken tracts of wilderness. Is there another way for conservation biologists to ensure the survival of a species? In this lesson, you'll learn about habitat fragmentation and metapopulations.

Ecological Succession: From Pioneer to Climax Communities

8. Ecological Succession: From Pioneer to Climax Communities

Just as people grow and change so, too, do ecosystems. Watch this lesson to learn about ecological succession from the beginning stages of development to a community's ultimate destination, or climax.

How Introduced and Invasive Species Alter Ecological Balance

9. How Introduced and Invasive Species Alter Ecological Balance

What happens to your block when a new neighbor moves in? Something changes, right? Now think about that on an ecological scale: what happens to an environment when a new SPECIES moves in?

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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