Ch 15: AP Environmental Science - Ecosystems: Help and Review

About This Chapter

The Ecosystems chapter of this AP Environmental Science Help and Review course is the simplest way to master ecosystems. This chapter uses simple and fun videos that are about five minutes long, plus lesson quizzes and a chapter exam to ensure students learn the essentials of ecosystems.

Who's it for?

Anyone who needs help learning or mastering AP environmental science material will benefit from taking this course. There is no faster or easier way to learn AP environmental science. Among those who would benefit are:

  • Students who have fallen behind in understanding levels of ecology or the laws of thermodynamics
  • Students who struggle with learning disabilities or learning differences, including autism and ADHD
  • Students who prefer multiple ways of learning science (visual or auditory)
  • Students who have missed class time and need to catch up
  • Students who need an efficient way to learn about ecosystems
  • Students who struggle to understand their teachers
  • Students who attend schools without extra science learning resources

How it works:

  • Find videos in our course that cover what you need to learn or review.
  • Press play and watch the video lesson.
  • Refer to the video transcripts to reinforce your learning.
  • Test your understanding of each lesson with short quizzes.
  • Verify you're ready by completing the Ecosystems chapter exam.

Why it works:

  • Study Efficiently: Skip what you know, review what you don't.
  • Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
  • Be Ready on Test Day: Use the Ecosystems chapter exam to be prepared.
  • Get Extra Support: Ask our subject-matter experts any ecosystems question. They're here to help!
  • Study With Flexibility: Watch videos on any web-ready device.

Students will review:

This chapter helps students review the concepts in an ecosystems unit of a standard AP environmental science course. Topics covered include:

  • Levels of ecology
  • Ecosystems, habitats and ecological niches
  • Laws of thermodynamics
  • Global ecology
  • Biodiversity
  • Biogeochemical cycling
  • The phosphorus cycle
  • The nitrogen cycle
  • The carbon cycle
  • Fossil fuels and greenhouse gases
  • Global warming

11 Lessons in Chapter 15: AP Environmental Science - Ecosystems: Help and Review
Test your knowledge with a 30-question chapter practice test
The Environment, Levels of Ecology and Ecosystems

1. 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

2. 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.

The Laws of Thermodynamics

3. The Laws of Thermodynamics

Learn about the first and second laws of thermodynamics. Find out how energy is generated, how it converts from one form to another, and what happens to energy in a closed system.

Global Ecology: Definition and Overview

4. Global Ecology: Definition and Overview

A large oil spill in the middle of the ocean and the release of greenhouse gases into the atmosphere are examples of environmental problems that can influence the entire planet. This lesson will explore the study of environmental problems occurring on a global scale, including the impact of globalization and current major global environmental problems.

What is Biodiversity? - Definition and Relation to Ecosystem Stability

5. 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

6. 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.

Biogeochemical Cycling and the Phosphorus Cycle

7. Biogeochemical Cycling and the Phosphorus Cycle

In this video lesson, we'll take a look at how elements large and small use other elements to grow. This is achieved through cycles. We'll look at macronutrients, trace elements and the biogeochemical and phosphorous cycles.

The Nitrogen Cycle, Acid Rain and Fossil Fuels

8. The Nitrogen Cycle, Acid Rain and Fossil Fuels

Do you know the difference between nitrite and nitrate? Do you have any clue how all the nitrogen in the atmosphere becomes usable? If you can't answer these questions, then you need to watch this lesson on the nitrogen cycle.

The Carbon Cycle and Long-Term Carbon Storage

9. The Carbon Cycle and Long-Term Carbon Storage

All living organisms have a role in the carbon cycle. Do you know you understand how humans, animals and plants use carbon? This lesson will introduce you to the carbon cycle and explain how it functions on a global scale.

Fossil Fuels, Greenhouse Gases, and Global Warming

10. Fossil Fuels, Greenhouse Gases, and Global Warming

In this video lesson, you'll learn what roles fossil fuels and greenhouse gases play in global warming, as well as what life on Earth can expect due to rising carbon dioxide levels within Earth's atmosphere.

Temperate Grassland Biome: Climate, Plants, Animals & Locations

11. Temperate Grassland Biome: Climate, Plants, Animals & Locations

A biome is a naturally-occurring community of plants and wildlife that occupy a major habitat. In this lesson, we will examine the temperate grassland biomes found around the world to gain a better understanding of them.

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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Other Chapters

Other chapters within the AP Environmental Science: Help and Review course

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