About This Chapter
Ecosystems & Populations - Chapter Summary
Our expert instructors make it easy to fully understand the basics of ecosystems and populations. Review these entertaining lessons to gain greater insight into over-exploitation, population growth and more. Completing this chapter will enable you to:
- Define and share examples of invasive species
- Discuss over-exploitation and the impact humans have on ecosystems
- Calculate the rate of natural increase in population
- List and describe limiting factors in population growth
This chapter enables you to review the lessons any time using any computer or mobile device you desire. This flexibility ensures you're able to study whenever and wherever your schedule permits in a manner that suits your personal preferences. If you develop questions while studying the lessons, feel free to submit them to our experts via the Dashboard. Before the day of your test, check your comprehension of ecosystems and populations by taking short quizzes and practice exam.
1. What Is an Invasive Species? - Definition, List & Effects
This lesson focuses on a group of organisms called invasive species. You'll learn what makes a species invasive and see some examples of invasive species. You'll also discover why invasive species are considered a problem and explore the impacts they have on the environment, the economy and on humans.
2. Over-Exploitation: How Humans Affect Ecosystems By Decreasing Species Populations
In this lesson, you'll learn how humans overexploit or overharvest species. You will discover the primary way in which humans are responsible for overfishing. You will also learn about how this negatively impacts ecosystems.
3. Rate of Natural Increase in Population: Definition & Overview
Understanding how population changes over time is an important science. This lesson takes a look at the rate of natural increase in population and how to calculate it. You will also get a clearer understanding of why this matters.
4. The Limiting Factors of Population Growth
Is it possible for any one population to grow so large it takes over the planet? In this lesson you will learn the answer to that question. You will learn about the limiting factors of population growth and how it controls population numbers.
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
Transferring credit to the school of your choice
Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.
Other chapters within the M-STEP Science - Grade 11: Test Prep & Practice course
- Scientific Inquiry & Reflection
- Earth Systems Overview
- Energy & Biochemical Cycles in Earth Systems
- Human Impacts on Earth Systems
- Advanced Rock Cycle
- The Interior of the Earth
- Plate Tectonics Theory
- Earthquakes & Volcanoes Overview
- Hydrogeology Overview
- Oceans & Climate
- Weather and Storms
- The Earth & Sun as a Part of a Galaxy
- Basics of Earth History & Geologic Time
- Climate Change
- Transformation of Matter & Energy in Cells
- Living Organism Composition
- Interdependence of Living Systems & the Environment
- DNA & Mutations
- Mitosis & Meiosis
- Evolution & Biodiversity
- Physics & the Motion of Objects
- The Physics of Forces & Motion
- Forms of Energy
- Basics of Waves
- Light, Electricity & Nuclear Reactions
- Energy Transfer & Conservation
- Properties & States of Matter
- Chemical Changes in Matter
- M-STEP Science - Grade 11 Flashcards