Ch 18: ILTS Environmental Science: Energy Flow in Natural Ecosystems

About This Chapter

This chapter can help you learn about the cycling of matter and flow of energy in various ecosystems. Video lessons and self-assessment quizzes can show you the information you will need for the questions on the ILTS Environmental Science exam.

ILTS Environmental Science: Energy Flow in Natural Ecosystems - Chapter Summary

Through the lessons in this chapter, you will get an idea of how energy flows through biotic and abiotic components of many types of ecosystems. The sun and its effect on climate and the distribution of ecosystems are discussed, as is the hydrologic cycle and its impact on society and natural systems. You will also look at how natural occurrences such as disease epidemics and species migrations have changed the environment. This chapter prepares you to successfully answer questions on the exam by covering topics such as:

  • How the laws of thermodynamics apply to habitats, individual organisms and community dynamics
  • The effects of the phosphorus, sulfur, nitrogen and carbon dioxide/oxygen cycles
  • Tidal energy
  • Geothermal energy
  • Interactions of biotic and abiotic factors in the environment
  • Factors including population dynamics and human activity that influence biodiversity

The engaging video lessons are taught by expert instructors who will show you how energy flows through diverse ecosystems. With this information, you will be prepared for the exam and have fun while you learn.

Objectives of the ILTS Environmental Science: Energy Flow in Natural Ecosystems Course

Anyone who wants to teach environmental science at the secondary school level in Illinois must pass the Illinois Licensure Testing System (ILTS) environmental science content area exam. This exam contains 125 multiple-choice questions, which are divided into six subareas. Questions based on the material covered in the Energy Flow in Natural Ecosystems chapter are part of subarea V. You can become familiar with the test's format, as well as check your knowledge of the subject, by completing the self-assessment quizzes that follow each video lesson.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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