About This Chapter
TExMaT Master Science Teacher 8-12: Ecosystems & Biomes - Chapter Summary
Use the lessons in this chapter to review the levels of ecology, types of biomes, various cycles and other concepts related to ecosystems and biomes. Specifically, our lessons cover topics such as:
- Examining the ecosystems, habitats and ecological niches
- Defining biomes, including desert, tropical rainforest, tundra, taiga, among others
- Exploring food chains, trophic levels and energy flow in an ecosystem
- Looking at conservation biology, habitat fragmentation and metapopulations
- Explaining mutualism, commensalism and parasitism in symbiotic relationships
- Discussing ecological succession
- Describing the nitrogen, phosphorus and carbon cycles
- Detailing human impact on the environment
Our experienced instructors break complex subjects into smaller, manageable components to make studying easy. Text lessons are often linked to the videos and offer additional detail about key terms. Lesson transcripts provide another way to review the information you watched on screen.
TExMaT Master Science Teacher 8-12: Ecosystems & Biomes Chapter Objectives
The TExMaT Master Science Teacher 8-12 test is offered by the state of Texas to 8th through 12th grade science teachers seeking certification as master teachers. The test is organized into 6 content domains. Questions about ecosystems and biomes are included under the Life Science content domain. Use our video lessons, quizzes and chapter exam to brush up on your knowledge of this subject area and make sure you are ready for the assessment.
The test, provided in a paper-based format, consists of 90 multiple-choice questions and 1 constructed response case study assignment. You will have 5 hours to complete the test.
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. 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.
4. 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.
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. Interspecific Competition, Competitive Exclusion & Niche Differentiation
What happens when two similar species that consume the same resources occupy the same space? Interspecific competition, that's what! Watch our video lesson to learn about the outcomes of this ecological battle.
7. 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.
8. 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.
9. Conservation Biology, Habitat Fragmentation, and Metapopulations
It's becoming harder to conserve large, unbroken tracts of wilderness. Is there another way for conservation biologists to ensure the survival of a species? In this lesson, you'll learn about habitat fragmentation and metapopulations.
10. 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.
11. 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?
12. 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.
13. 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.
14. 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.
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Other chapters within the TExMaT Master Science Teacher 8-12 (092): Practice & Study Guide course
- Nature of Science & Unifying Themes
- The History & Societal Contexts of Science
- Methods of Scientific Inquiry
- Managing Scientific Data
- TExMaT Master Science Teacher 8-12: Laboratory Equipment & Procedures
- TExMaT Master Science Teacher 8-12: Organization of Matter
- TExMaT Master Science Teacher 8-12: States of Matter
- TExMaT Master Science Teacher 8-12: Chemical Reactions Basics
- TExMaT Master Science Teacher 8-12: Types of Chemical Reactions
- TExMaT Master Science Teacher 8-12: The Periodic Table
- TExMaT Master Science Teacher 8-12: Newton's Laws & Gravity
- TExMaT Master Science Teacher 8-12: Physics Dimensions of Motion
- TExMaT Master Science Teacher 8-12: Analyzing Forces
- Energy Transformations & Thermodynamics
- Electrical Nature & Magnetism
- TExMaT Master Science Teacher 8-12: Waves, Optics & Sound
- TExMaT Master Science Teacher 8-12: Cell Structure & Function
- TExMaT Master Science Teacher 8-12: Cell Reproduction & Division
- TExMaT Master Science Teacher 8-12: Biochemistry of Life
- TExMaT Master Science Teacher 8-12: Introduction to Organic Chemistry
- TExMaT Master Science Teacher 8-12: Nucleic Acids
- Homeostasis & Health Maintenance
- TExMaT Master Science Teacher 8-12: Reproduction & Development
- TExMaT Master Science Teacher 8-12: Genetics & Heredity
- TExMaT Master Science Teacher 8-12: Biological Evolution
- TExMaT Master Science Teacher 8-12: Minerals, Rocks & Soil
- TExMaT Master Science Teacher 8-12: Renewable Resources
- TExMaT Master Science Teacher 8-12: Nonrenewable Resources
- Earth's Formation & Processes
- Overview of the Hydrosphere
- Earth's Atmosphere, Weather & Climate
- TExMaT Master Science Teacher 8-12: Plate Tectonics
- TExMat Master Science Teacher 8-12: The Solar System & Universe
- Alignment of Texas Science Instruction for High Schoolers
- Teaching Strategies for High School Science
- The Science Learning & Teaching Environment
- Using Different Types of Student Assessments
- Leadership, Communication & Collaboration in Science Education
- Mentoring & Professional Development for Texas Science Teachers
- TExMaT Master Science Teacher 8-12 Flashcards