About This Chapter
TExES Science 7-12: Ecological Balance & Conservation - Chapter Summary
You can use this chapter to review and enhance your knowledge of ecological balance and conservation, in preparation for the TExES Science 7-12 exam. Our instructors have carefully prepared and selected lessons for you to gauge your familiarity with basic concepts and definitions of ecosystems and their preservation. The chapter will help you prepare for the TExES Science 7-12 exam by perfecting your ability to:
- Define biodiversity and explain how it relates to the stability of ecosystems
- Explain population ecology and identify key factors that determine populations
- Describe a correlation between human environmental impact and ecological conservation
- Understand the principles of ecological balance
- List different types of conservation, including water and land conservation
- Differentiate between renewable and non-renewable resources
Video lessons in this chapter are also available as transcripts, so that you can read them at your own pace. Each lesson includes a quiz that you can take to measure your improvement. After going through all lessons, you can take the chapter test, as this will help you decide if you are prepared to answer the exam questions on these subject matters. Feel free to contact our subject-matter experts at any time, by using Teacher tabs in the lessons.
1. 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.
2. Population Ecology: Definition, Theory & Model
In this lesson, learn how population ecologists study populations and their interactions with their environment. You will learn about the various terms and models they use to describe and understand this complex field of study.
3. 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.
4. 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.
5. 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?
6. Human Environmental Impact & Ecological Conservation
The Earth has only so much space for us and our non-human neighbors. In this lesson, we will learn about how humans impact the environment, what causes habitat fragmentation, and what ecological conservation can do to help.
7. 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.
8. 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.
9. 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.
10. Water Conservation: How Water Management Can Lead to Sustainable Use
In this video lesson you will learn about the importance of water conservation. You will also learn about the two ways freshwater is used, and how proper water use can lead to sustainability in agriculture, homes, and manufacturing.
11. Land Conservation: Criteria For Evaluation of Land and Most Endangered Lands in the US
Land is a very valuable thing and is used for many different purposes. We will explore why land should be conserved and the criteria for evaluating land. We will also identify some of the most endangered ecosystems in the United States.
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Other chapters within the TExES Science 7-12 (236): Practice & Study Guide course
- About the TExES Science 7-12 Exam
- TExES Science 7-12: Laboratory Safety & Management
- TExES Science 7-12: Scientific Inquiry & Processes
- TExES Science 7-12: Motion
- TExES Science 7-12: Newton's Laws
- TExES Science 7-12: Laws of Gravitation
- TExES Science 7-12: Electrical Forces & Fields
- TExES Science 7-12: Electricity & Magnetism
- TExES Science 7-12: Potential & Capacitance
- TExES Science 7-12: Work, Energy & Power
- TExES Science 7-12: Linear & Angular Momentum
- TExES Science 7-12: Thermodynamics
- TExES Science 7-12: Optics & Waves
- TExES Science 7-12: Quantum Physics
- TExES Science 7-12: Matter & Atomic Structure
- TExES Science 7-12: Periodicity
- TExES Science 7-12: Properties of Gases
- TExES Science 7-12: Chemical Bonding
- TExES Science 7-12: Chemical Equations & Stoichiometry
- TExES Science 7-12: Properties of Solutions
- TExES Science 7-12: Energy Transformations
- TExES Science 7-12: Radioactivity
- TExES Science 7-12: Oxidation-Reduction Reactions
- TExES Science 7-12: Acid-Base Chemistry
- TExES Science 7-12: Biomolecules
- TExES Science 7-12: Organic Compounds
- TExES Science 7-12: Cell Biology
- TExES Science 7-12: Prokaryotic & Eukaryotic Cells
- TExES Science 7-12: Protists, Fungi & Viruses
- TExES Science 7-12: Plant Cells
- TExES Science 7-12: Nucleic Acids & Enzymes
- TExES Science 7-12: Transcription & Translation
- TExES Science 7-12: Cell Reproduction & Division
- TExES Science 7-12: Metabolic Biochemistry
- TExES Science 7-12: Basic Genetics
- TExES Science 7-12: DNA Replication
- TExES Science 7-12: Theory of Biological Evolution
- TExES Science 7-12: Evolutionary Change on Earth
- TExES Science 7-12: Taxonomic Systems
- TExES Science 7-12: Plant Biology
- TExES Science 7-12: Plant Reproduction & Growth
- TExES Science 7-12: Animal Biology
- TExES Science 7-12: Human Organ Systems
- TExES Science 7-12: Human Reproduction & Development
- TExES Science 7-12: Homeostasis of Organisms
- TExES Science 7-12: Biology & Behavior
- TExES Science 7-12: Ecosystems & Ecological Cycles
- TExES Science 7-12: Earth's Spheres & Internal Structure
- TExES Science 7-12: Minerals & Rocks
- TExES Science 7-12: Earth's Changing Surfaces
- TExES Science 7-12: Geologic Time
- TExES Science 7-12: The Hydrosphere
- TExES Science 7-12: Weather & Storms
- TExES Science 7-12: Solar System & the Universe
- TExES Science 7-12: The Atmosphere
- TExES Science 7-12: Learning & Instruction
- TExES Science 7-12 Flashcards