About This Chapter
FTCE Biology: Ecological Principles & Processes - Chapter Summary
Let us help you get ready for FTCE Biology questions on ecological principles and processes. You'll study ecology and ecosystems, food chains, energy flow and population density, among other topics related to the environment. You'll also take a look at lessons on carrying capacity, migration, dispersal and colonization. After completing these lessons, your knowledge should enable you to:
- Define biodiversity and its relationship to the stability of ecosystems
- Explain ecological succession from pioneer to climax communities
- Share how non-native species alter the natural balance
- Discuss the phosphorus, nitrogen, hydrologic and carbon cycles
- Differentiate between renewable and non-renewable resources
- Describe fossil fuels, greenhouse gases and global warming
- Compare producers, consumers and decomposers in an ecosystem
These lessons give you the knowledge about the environment and its systems that you need for questions on the FTCE Biology test. You'll get a good overview of these topics, and our expert instructors use animations and illustrations to make studying enjoyable.
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. 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.
3. Producers, Consumers & Decomposers in Ecosystems
In this lesson we will learn about producers, consumers, and decomposers. Find out what they are and how they interact with one another in the ecosystem.
4. Populations: Density, Survivorship and Life Histories
Have you ever wondered how biologists determine the populations of animals in a particular geographic area? Watch this video lesson to find out, and discover how scientists look at the survivorship and life histories of many different species.
5. Carrying Capacity, Migration & Dispersion
Have you ever wondered why some types of birds fly south in the winter or why some animals form territories? Watch this video to learn about a species' maximum growth capabilities, the way its members group themselves and why they might migrate to new locations every year.
6. Dispersal, Colonization, and Island Biogeography
Have you ever gone in your backyard and discovered a wild raspberry bush that has never been there before? How did it get there? Why is there only one bush year after year? In this lesson, you'll study how plant and animal species colonize in new areas through dispersal and immigration and how some species thrive in a new area while others fail.
7. 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.
8. Deforestation, Desertification & Declining Biological Diversity
When trees are lost due to deforestation, the result can be a drier climate and desertification or the transformation of the once fertile land to desert. Learn how deforestation and desertification can lead to a decline in biological diversity.
9. 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.
10. How Introduced and Invasive Species Alter Ecological Balance
What happens to your block when a new neighbor moves in? Something changes, right? Now think about that on an ecological scale: what happens to an environment when a new SPECIES moves in?
11. 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.
12. Cycles of Matter: The Nitrogen Cycle and the Carbon Cycle
Matter is constantly cycled between living and nonliving parts of the environment. Processes like photosynthesis and nitrogen fixation allow the carbon and nitrogen cycles to regenerate needed substances by recycling Earth's atoms.
13. The Hydrologic Cycle: Definition, Process & Diagram
The hydrologic, or water, cycle describes the storage and movement of all water on Earth. This lesson will cover the different reservoirs where water can be stored and how it moves between them.
14. Renewable & Non-Renewable Resources: Definition & Differences
We use a variety of Earth's resources, but not all of them will be around forever. This lesson explains the difference between resources that can be regenerated for our use and those that are gone after they are used once.
15. 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.
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Other chapters within the FTCE Biology Grades 6-12 (002): Practice & Study Guide course
- About the FTCE Biology Grades 6-12 Test
- FTCE Biology: Basic Lab Equipment, Processes & Measurements
- FTCE Biology: Research Methods
- FTCE Biology: Science, Technology & Society
- FTCE Biology: Inorganic Compounds
- FTCE Biology: Organic Compounds
- FTCE Biology: Nucleic Acids
- FTCE Biology: Enzymes
- FTCE Biology: Metabolic Biochemistry
- FTCE Biology: Cell Biology
- FTCE Biology: Plant Cells
- FTCE Biology: Cell Communication
- FTCE Biology: Requirements of Biological Systems
- FTCE Biology: Cell Cycle & Division
- FTCE Biology: DNA Replication
- FTCE Biology: The Transcription & Translation Process
- FTCE Biology: Genetic Principles, Processes & Applications
- FTCE Biology: Genetic Mutations
- FTCE Biology: Prokaryotic Organisms & Viruses
- FTCE Biology: Protists, Fungi & Plant Biology
- FTCE Biology: Plant Reproduction & Growth
- FTCE Biology: Animal Systems, Behavior & Interactions
- FTCE Biology: Overview of the Human Body
- FTCE Biology: Components of Florida's Ecosystems
- FTCE Biology: Evolutionary Mechanisms
- FTCE Biology: Origins of Life on Earth & Taxonomy
- FTCE Biology Grades 6-12 Flashcards