Ch 47: Ohio Graduation Test: Ecology

About This Chapter

Prepare for the Ohio Graduation Test's questions on ecology. Within this chapter are several video and text lessons that can expand your knowledge of the subject. You'll find online videos and quizzes along with transcripts and worksheets.

Ohio Graduation Test: Ecology - Chapter Summary

Before taking the Ohio Graduation Test, use this chapter to learn about ecology, including different life forms and the ecosystems that contain them. Biodiversity, genetic diversity and species richness are explored throughout the text and video lessons. Take the opportunity to examine the effects of humans on the environment. You can also get information about the food chains, trophic levels and food webs of various ecosystems. As a result of studying this chapter, you should be able to:

  • Explain what happens during the nitrogen and carbon cycles
  • Explore different forms of ecology as well as habitats, niches and ecosystems
  • Define and outline various kinds of biodiversity
  • Learn about the utilization of energy within a food web, and identify the trophic levels of a food chain
  • Discuss the ways in which human activities such as deforestation, desertification and pollution impact the environment

Prepare to qualify for your high school diploma by passing the Ohio Graduation Test. Knowledgeable teachers provide information on ecology through this chapter's lesson videos. The lessons are easily accessible and can be studied at your convenience as you incorporate them into your existing study routine. Submit your questions on ecology through the Dashboard, and use the video tags under the timeline link to move around to the videos' major points.

Ohio Graduation Test: Ecology Chapter Objectives

The Ohio Graduation Test is given during students' sophomore, junior and senior years. It's made up of five categories of questions that evaluate students' knowledge of different aspects of the numerous content areas. You must complete the Mathematics, Social Studies, Science, Writing and English Language Arts sections in order to successfully pass the assessment. Questions that have to do with ecology will be found on the Science portion of the test. This particular category has 32 multiple-choice questions, two extended-response questions and four short-answer items. Its six subareas are: Earth and Space Sciences, Life Sciences, Physical Sciences, Science and Technology, Scientific Inquiry and Scientific Ways of Knowing. Demonstrate how much you understand about ecology during the Life Sciences subarea.

6 Lessons in Chapter 47: Ohio Graduation Test: Ecology
Test your knowledge with a 30-question chapter practice test
Cycles of Matter: The Nitrogen Cycle and the Carbon Cycle

1. Cycles of Matter: The Nitrogen Cycle and the Carbon Cycle

Matter is constantly cycled between living and nonliving parts of the environment. Processes like photosynthesis and nitrogen fixation allow the carbon and nitrogen cycles to regenerate needed substances by recycling Earth's atoms.

The Environment, Levels of Ecology and Ecosystems

2. The Environment, Levels of Ecology and Ecosystems

Do you know the difference between an environment and an ecosystem? In this lesson, you'll find out what makes an environment, and what makes an ecosystem. You'll also learn what ecology is and some of the ways that scientists study ecology using organisms, populations, communities, ecosystems and even the entire biosphere.

Ecosystems, Habitats and Ecological Niches

3. Ecosystems, Habitats and Ecological Niches

Check out this video lesson to understand the many complex aspects of an ecosystem. See how animals live in habitats and survive amongst their surroundings.

What is Biodiversity? - Definition and Relation to Ecosystem Stability

4. What is Biodiversity? - Definition and Relation to Ecosystem Stability

Imagine making a list of all of the species you have ever heard of; it would be an enormous list! There are many different species on this planet. This lesson will explore the diversity of species, as well as the different types of diversity and how diversity of life is essential for maintaining healthy ecosystems.

Food Chains, Trophic Levels and Energy Flow in an Ecosystem

5. Food Chains, Trophic Levels and Energy Flow in an Ecosystem

In this lesson, you'll learn about food chains, food webs, and the different roles that organisms play in an ecosystem. You'll also learn about how energy flows through an ecosystem.

Human Impacts on the Environment

6. Human Impacts on the Environment

The human population continues to grow, but the size of Earth and the resources available for our use are limited. Humans greatly impact the world around them, and our actions can and often do have dramatic and long-lasting consequences.

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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Other Chapters

Other chapters within the Ohio Graduation Test: Study Guide & Practice course