About This Chapter
Who's it for?
Anyone who needs help understanding middle school life 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 biodiversity or ecosystems.
- Need an efficient way to learn about introductory 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 Introduction to 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 Introduction to 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 is the definition of global ecology?
- What is the relationship between biodiversity and stable ecosystems?
- How do food chains work in an ecosystem?
- How does the carbon cycle work?
- What are the links found among fossil fuels, greenhouse gases and global warming?
- What are some of the key characteristics of predator/prey interactions and symbiotic relationships?
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.
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.
3. 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.
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.
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.
6. 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.
7. 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.
8. 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.
9. 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.
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Other chapters within the Middle School Life Science: Help and Review course
- Introduction to Life Science: Help and Review
- Characteristics & Chemicals of Life: Help and Review
- The Parts of Cells: Help and Review
- DNA Replication & Mutation: Help and Review
- Cell Division & the Cell Cycle: Help and Review
- How Living Organisms Get Energy: Help and Review
- Classification of Organisms: Help and Review
- The Origin & History of Life On Earth: Help and Review
- Genetics & Hereditary Traits: Help and Review
- Genetic Engineering Basics: Help and Review
- Natural Selection & Evolution in Life Science: Help and Review
- Microbiology & Types of Microbes: Help and Review
- Types of Ecosystems: Help and Review
- Changing Ecosystems: Help and Review
- Invertebrates: Help and Review
- Animal Behavior & Communication: Help and Review
- Mammal Reproduction & Development: Help and Review
- The Cardiovascular System: Help and Review
- The Blood Vessels: Help and Review
- The Digestive System: Help and Review
- The Urinary & Endocrine Systems: Help and Review
- The Muscular System: Help and Review
- The Skeletal System & Connective Tissue: Help and Review
- Sight, Hearing & Other Senses: Help and Review
- Health Issues & Concerns: Help and Review
- Plant Biology & Structure: Help and Review
- How Plants Grow & Reproduce: Help and Review
- Environmental Concerns: Help and Review
- Natural Resources: Help and Review
- Growth & Productivity in Economics
- American Labor & Consumer Issues