About This Chapter
Who's it for?
Anyone who needs help learning or mastering college environmental science material will benefit from taking this course. You will be able to grasp the subject matter faster, retain critical knowledge longer and earn better grades. You're in the right place if you:
- Have fallen behind in understanding biomes or the evolution of ecosystems.
- Need an efficient way to learn about evolving ecosystems.
- Learn best with engaging auditory and visual tools.
- Struggle with learning disabilities or learning differences, including autism and ADHD.
- Experience difficulty understanding your teachers.
- Missed class time and need to catch up.
- Can't access extra science learning resources at school.
How it works:
- Start at the beginning, or identify the topics that you need help with.
- Watch and learn from fun videos, reviewing as needed.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Submit questions to one of our instructors for personalized support if you need extra help.
- Verify you're ready by completing the Evolving 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 Evolving Ecosystems chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any relevant question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
In this chapter, you'll learn the answers to questions including:
- What are the different types of biomes?
- How does primary productivity differ in biomes?
- How does ecological succession occur in ecosystems?
- What is the theory of evolution?
- What are the different types of natural selection?
- How do adaptation and natural selection occur among species?
1. Biomes: Desert, Tropical Rainforest, Savanna, Coral Reefs & More
Take a trip around the world and learn all about different biomes. Why can you only find certain plants and animals in specific places? What are the most fertile climates on Earth? Watch on to answer these and other questions.
2. Biomes: Tundra, Taiga, Temperate Grassland, and Coastlines
Take a trip with us in this lesson, starting in the Pacific Ocean, traveling across California through the Central Valley and up to the peaks of the Sierra Nevada mountains. We'll learn how oceans, elevation, and people can determine which types of biomes are found in different areas and check out the Earth's most massive and oldest organisms.
3. Primary Productivity of Biomes
Imagine a desert, a rainforest, and a lake. All of these areas are similar in that there are plants growing in them. These areas all vary because the amount of plant production is different based on the type of habitat. This lesson will explore the concept of primary productivity and how it varies by biomes. It will also discuss the most productive biomes and the biomes that produce the least biomass.
4. 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.
5. Succession in Freshwater and Terrestrial Ecosystems
The world's many freshwater and terrestrial ecosystems are constantly changing. This lesson will discuss how these ecosystems change over time and how they recover after disturbances occur.
6. Theories of Evolution: Lamarck vs. Darwin
We'll look at the interplay between population genetics and environment. Are traits individually acquired or do entire populations evolve? The flying hamsters and a few other notable experiments will provide the answers.
7. Natural Selection & Adaptation: Definition, Theory & Examples
How does natural selection help shape the amazing types of animals we witness around us? In this lesson, we'll explore adaptations and what they can tell us about a species' past evolution.
8. Natural Selection: Definition, Types & Examples
We'll take a look at the types of natural selection that can occur. From flying hamsters to moths, you'll start to grasp the different paths organisms can take as they respond to their changing environments over time.
9. Benthos: Definition, Types & Examples
In bodies of water there exist different levels as you start from the surface and proceed downward. We will be looking into the community in one of the deepest, the benthos community.
10. Taiga Biome: Animals, Plants, Climate & Locations
The taiga biome is an ecosystem specific to the far northern areas of North America, Europe, and Asia. It is characterized by long, cold winters, short, cool summers, and lots of coniferous trees. Learn more about these regions and take a quiz at the end.
11. Laurentide Ice Sheet: Facts, Collapse & Timeline
The Laurentide Ice Sheet was a mass of ice that covered most of Canada and part of the United States over two million years ago. Learn about its physical features and explore how its past decline can help to understand present ice sheets' response to future climate warming.
12. What is the Canadian Shield? - Definition, Location & Formation
Half of Canada is covered by an enormous plate of very old stone. In this lesson, we'll discuss the Canadian Shield - what it is, where it's found, and how it was formed.
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Other chapters within the Introduction to Environmental Science: Help and Review course
- Environmental Science Basics: Help and Review
- Ecosystems: Help and Review
- Interaction Among Organisms in the Ecosystem: Help and Review
- Atmospheric Science and the Environment: Help and Review
- Geological Science: Help and Review
- Biological Science: Help and Review
- Pollution of Freshwater Resources: Help and Review
- Bioremediation: Help and Review
- Land Resources: Help and Review
- Population and the Environment: Help and Review
- Food and Agricultural Resources: Help and Review
- Solid and Hazardous Waste: Help and Review
- Human Impact on the Environment: Help and Review
- Renewable Resources: Help and Review
- Nonrenewable Resources: Help and Review
- Environmental Sustainability: Help and Review
- Environmental Risk Analysis: Help and Review
- Ethical and Political Processes of the Environment: Help and Review