About This Chapter
How it works:
- Identify the lessons in Glencoe Biology's Principles of Ecology chapter with which you need help.
- Find the corresponding video lessons within this companion course chapter.
- Watch fun videos that cover the ecology topics you need to learn or review.
- Complete the quizzes to test your understanding.
- If you need additional help, re-watch the videos until you've mastered the material or submit a question for one of our instructors.
Students will learn:
- Levels of ecology
- Habitats and ecological niches
- Interspecific competition
- Competitive exclusion
- Nice differentiation
- Symbiotic relationships
- Food chains and trophic levels
- The phosphorus cycle
- The nitrogen cycle
- The carbon cycle
Glencoe Biology is a registered trademark of McGraw-Hill, which is not affiliated with Study.com.
1. The Environment, Levels of Ecology and Ecosystems
Ecology is the study of organisms and how they interact with the environment they live in. Explore ecology principles and the organismal, population, community, ecosystem, and biosphere levels of ecology.
2. Ecosystems, Habitats and Ecological Niches
Habitats are areas of the ecosystem where specific organisms live, while niches are the individual roles that organisms play within the ecosystem. Discover factors that affect an animal's niche and how population density impacts an ecosystem.
3. Interspecific Competition, Competitive Exclusion & Niche Differentiation
When two species within the same environment require the same resources, it creates interspecific competition. Explore how interspecific competition creates competitive exclusion, local extinction, and niche differentiation.
4. Symbiotic Relationships: Mutualism, Commensalism & Parasitism
Understand how different species can exist in symbiotic relationships. Learn about the different types of symbiotic relationships: mutualism, parasitism, commensalism, and amensalism.
5. Food Chains, Trophic Levels and Energy Flow in an Ecosystem
Understand how food chains and their trophic levels create energy flow within a food web. Learn about food chains, the trophic levels of food chains, and the amount of energy that flows through a food web.
6. Biogeochemical Cycling and the Phosphorus Cycle
Like all elements, phosphorus cycles through organisms and their host environments via a process called biogoechemical cycling. Explore biogeochemical cycling and the phosphorus cycle, and also learn about the different types of macrominerals and how they are utilized by different organisms.
7. The Nitrogen Cycle, Acid Rain and Fossil Fuels
Nitrogen is an essential component of all living things, and this chemical component is a part of a natural cycle called the nitrogen cycle. Learn about the nitrogen cycle, the different forms of nitrogen, the process of nitrogen fixation, and the process of how acid rain is produced.
8. The Carbon Cycle and Long-Term Carbon Storage
Carbon is important to all living organisms, and humans, animals, plants, and other living organisms all play a role in the carbon cycle. Learn about important processes in the carbon cycle, including photosynthesis and cellular respiration, and understand long-term carbon storage.
Earning College Credit
Did you know… We have over 220 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.
To learn more, visit our Earning Credit Page
Other chapters within the Glencoe Biology: Online Textbook Help course
- Glencoe Biology Chapter 1: The Study of Life
- Glencoe Biology Chapter 3: Communities, Biomes, and Ecosystems
- Glencoe Biology Chapter 4: Population Ecology
- Glencoe Biology Chapter 5: Biodiversity and Conservation
- Glencoe Biology Chapter 6: Chemistry in Biology
- Glencoe Biology Chapter 7: Cellular Structure and Function
- Glencoe Biology Chapter 8: Cellular Energy
- Glencoe Biology Chapter 9: Cellular Reproduction
- Glencoe Biology Chapter 10: Sexual Reproduction and Genetics
- Glencoe Biology Chapter 11: Complex Inheritance and Human Heredity
- Glencoe Biology Chapter 12: Molecular Genetics
- Glencoe Biology Chapter 13: Genetics and Biotechnology
- Glencoe Biology Chapter 14: The History of Life
- Glencoe Biology Chapter 15: Evolution
- Glencoe Biology Chapter 16: Primate Evolution
- Glencoe Biology Chapter 17: Organizing Life's Diversity
- Glencoe Biology Chapter 18: Bacteria and Viruses
- Glencoe Biology Chapter 19: Protists
- Glencoe Biology Chapter 20: Fungi
- Glencoe Biology Chapter 21: Introduction to Plants
- Glencoe Biology Chapter 22: Plant Structure and Function
- Glencoe Biology Chapter 23: Reproduction in Plants
- Glencoe Biology Chapter 24: Introduction to Animals
- Glencoe Biology Chapter 25: Worms and Mollusks
- Glencoe Biology Chapter 26: Arthropods
- Glencoe Biology Chapter 27: Echinoderms and Invertebrate Chordates
- Glencoe Biology Chapter 28: Fishes and Amphibians
- Glencoe Biology Chapter 31: Animal Behavior
- Glencoe Biology Chapter 32: Integumentary, Skeletal, and Muscular Systems
- Glencoe Biology Chapter 33: Nervous System
- Glencoe Biology Chapter 34: Circulatory, Respiratory, and Excretory Systems
- Glencoe Biology Chapter 35: Digestive and Endocrine Systems
- Glencoe Biology Chapter 36: Human Reproduction and Development
- Glencoe Biology Chapter 37: The Immune System