Ch 16: MTLE Middle Level Science: Interdependence, Energy Flow & Ecosystems

About This Chapter

These lessons can help you review interdependence, energy flow and ecosystems. Use this chapter to brush up before tackling the MTLE Middle Level Science examination. Quizzes are included.

MTLE Middle Level Science: Interdependence, Energy Flow and Ecosystems - Chapter Summary

Text and video lessons comprise this educational chapter on interdependence, energy flow and ecosystems. You've likely already studied these topics at length, but the lessons can serve to remind you of how organisms within ecosystems rely on one another for survival. The lessons note the definition of a natural habitat and ecological niche, and they also explore behavioral ecology and animal behavior. After you complete this chapter, you will be able to:

  • Explain the factors that contribute to species richness
  • Detail the biological diversity of ecosystems within water and forests
  • Explore the biodiversity and characteristics of hot and cold desert ecosystems
  • Define and compare biotic and abiotic factors
  • Discuss ecosystem ecology
  • List the components of a food web
  • Explain the purpose of producers, consumers and decomposers
  • Examine the process of ecological succession

The flexibility of this platform allows you to study online 24/7 at your own pace. Make the most of your review time by utilizing the video tags to jump quickly from one topic to the next. They can be accessed by clicking the timeline link. Our short lesson quizzes consist of five questions, and corresponding worksheets of your quiz answers can be printed out for future reference.

14 Lessons in Chapter 16: MTLE Middle Level Science: Interdependence, Energy Flow & Ecosystems
Test your knowledge with a 30-question chapter practice test
What is a Natural Habitat? - Definition & Habitat Destruction

1. What is a Natural Habitat? - Definition & Habitat Destruction

There are many places that animals, plants, and other organisms call home - their natural habitats. In this lesson, you will go over a few natural habitats and discover ways in which some are being destroyed.

Ecological Niche: Definition & Importance

2. Ecological Niche: Definition & Importance

Most people want to feel like they belong and have an important role in society. This is also true in a biological aspect. In this lesson, we will learn about ecological niches as well as the roles of organisms and the various aspects of their lives.

Species Richness: Definition & Determining Factors

3. Species Richness: Definition & Determining Factors

In this lesson, you'll learn what species richness is and what factors can influence the index of species richness. You'll also discover why it is an important index to measure in terms of conservation.

Ecosystems of Oceans and Freshwater: Biological Diversity and Water

4. Ecosystems of Oceans and Freshwater: Biological Diversity and Water

In this lesson, you'll learn about the biodiversity of ecosystems based on water. You will discover that marine, freshwater and a mixture of salt and freshwater create very different ecosystems, which in turn influence the amount of biodiversity that is found in these habitats.

Biological Diversity and the Forest: Ecosystems of the Rainforests and Temperate Forests

5. Biological Diversity and the Forest: Ecosystems of the Rainforests and Temperate Forests

In this lesson, you'll learn about three main types of forests found on earth: coniferous, deciduous and tropical rainforests. You'll also discover how the ecosystems where these trees are located affect the biodiversity within them.

Desert Ecosystems: How Biodiversity Impacts Hot and Cold Deserts

6. Desert Ecosystems: How Biodiversity Impacts Hot and Cold Deserts

In this lesson, you'll learn about the biodiversity that makes up a desert ecosystem. You will discover what makes a desert a desert and study the different plant and animal life that inhabit both hot and cold deserts.

What is Biotic? - Definition, Factors & Examples

7. What is Biotic? - Definition, Factors & Examples

In this lesson you will learn about the biotic components in an ecosystem and the biotic factors that affect organisms. You will also have a better understanding about why planet Earth is a pretty special place.

Abiotic Factors of an Ecosystem: Definition & Examples

8. Abiotic Factors of an Ecosystem: Definition & Examples

When it comes to ecosystems, a mountain, a river, and a cloud have more in common than you might think. Abiotic factors have specific and important roles in nature because they help shape and define ecosystems.

Ecosystem Ecology: Definition & Explanation

9. Ecosystem Ecology: Definition & Explanation

What powers life? How much energy do animals get from eating plants? What short- and long-term effects will climate change have on our environment? Asking questions such as these help ecologists better understand ecosystems and the processes within them.

What is a Food Web? - Definition & Explanation

10. What is a Food Web? - Definition & Explanation

This lesson will provide a definition of a food web, as well as describe its parts and discuss examples of different types. It will also explain the transfer of energy through a food web.

What Are Producers and Consumers in Biology? - Definition & Examples

11. What Are Producers and Consumers in Biology? - Definition & Examples

This lesson covers producers and consumers in biology. We'll discuss what producers and consumer are and consider examples of each in different ecosystems.

What is a Decomposer? - Definition & Examples

12. What is a Decomposer? - Definition & Examples

Decomposers are an often overlooked part of the natural world, but their job is an important one. Learn what decomposers are, what role they have in the environment and how people use them.

Ecological Succession: From Pioneer to Climax Communities

13. 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.

Behavioral Ecology & Animal Behavior

14. Behavioral Ecology & Animal Behavior

We all wish we could blame certain behaviors on genetics. Well, maybe we can. In this lesson, explore the study of evolved behavioral traits and discover how these develop in response to ecological pressure, then test your understanding with a brief quiz.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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