About This Chapter
Who's it for?
Anyone who needs help learning or mastering AP environmental science material will benefit from taking this course. There is no faster or easier way to learn AP environmental science. Among those who would benefit are:
- Students who have fallen behind in understanding symbiotic relationships or conservation biology
- Students who struggle with learning disabilities or learning differences, including autism and ADHD
- Students who prefer multiple ways of learning science (visual or auditory)
- Students who have missed class time and need to catch up
- Students who need an efficient way to learn about the interaction among organisms in the ecosystem
- Students who struggle to understand their teachers
- Students who attend schools without extra science learning resources
How it works:
- Find videos in our course that cover what you need to learn or review.
- Press play and watch the video lesson.
- Refer to the video transcripts to reinforce your learning.
- Test your understanding of each lesson with short quizzes.
- Verify you're ready by completing the Interaction Among Organisms in the Ecosystem chapter exam.
Why it works:
- Study Efficiently: Skip what you know, review what you don't.
- Retain What You Learn: Engaging animations and real-life examples make topics easy to grasp.
- Be Ready on Test Day: Use the Interaction Among Organisms in the Ecosystem chapter exam to be prepared.
- Get Extra Support: Ask our subject-matter experts any interaction among organisms in the ecosystem question. They're here to help!
- Study With Flexibility: Watch videos on any web-ready device.
Students will review:
This chapter helps students review the concepts in an interaction among organisms in the ecosystem unit of a standard AP environmental science course. Topics covered include:
- Interspecific competition and competitive exclusion
- Niche differentiation
- Predator/prey interactions
- Camouflage, mimicry and warning coloration
- Mutualism and parasitism
- Carrying capacity
- Migration and dispersion
- Island biogeography
- Conservation biology
- Habitat fragmentation and metapopulations
- Ecological balance alterations due to introduced and invasive species
1. 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.
2. 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.
3. 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.
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. 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.
8. 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?
9. Parasitism: Examples & Definition
Parasitism describes a relationship between two organisms where one is harmed, and the other benefits. Learn about the different types of parasitism and examples of each.
10. Mutualistic Relationships: Examples & Types
In this lesson, you will explore a type of symbiotic relationship, mutualism. This describes the interaction between two organisms where both benefit from the relationship. You will also learn several examples of different types of mutualistic relationships.
11. What Are Nematodes? - Definition, Properties & Examples
Nematodes are roundworms that are found in every environment on Earth. While some species are harmful parasites, others play a vital role in nutrient cycling and medical research.
12. Body Symmetry in Nematodes
The phylum Nematoda is a diverse and abundant one on Earth. In this lesson, you'll learn about the type of body symmetry that these roundworms exhibit.
13. Nematode Symmetry & Movement
We are going to get an understanding of the type of symmetry nematodes display. This lesson is also going to talk about how nematodes produce movement.
14. Nematode Circulatory System
Why do living things pump blood throughout their bodies? What purpose does the circulatory system serve? This lesson investigates circulation in nematodes, the most numerous worms on Earth. A brief quiz and summation are included.
15. Nematode Nervous System
Nematodes, or roundworms, are a diverse and interesting group of animals. In this lesson, you'll learn about their simple nervous system, which helps the worm move and react to its environment.
16. Nematode Reproductory System
Like other animals, nematodes, or roundworms, need to reproduce to pass on their genetic information to the next generation. In this lesson we'll discuss the reproductive system of nematodes. You might be surprised at what you learn!
17. Nematode Respiratory System
This lesson investigates the respiratory system of nematodes. It discusses how these organisms exchange gases with the atmosphere despite their lack of lungs, trachea, and other respiratory anatomy commonly found in other animals.
18. Phylum Nematoda: Classes, Characteristics & Examples
With 25,000 species discovered and an estimated 900,000 waiting to be discovered, phylum Nematoda is one the most species-rich phyla in the animal kingdom. This lesson discusses this and many other interesting facts about these tiny worms.
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Other chapters within the AP Environmental Science: Help and Review course
- Introduction to AP Environmental Science: Help and Review
- AP Environmental Science - Geologic Time: Help and Review
- AP Environmental Science - Plate Tectonics: Help and Review
- AP Environmental Science - Earthquakes: Help and Review
- AP Environmental Science - Volcanoes: Help and Review
- AP Science - The Atmosphere & Environment: Help & Review
- AP Environmental Science - Weather and Storms: Help and Review
- AP Environmental Science - Water Balance: Help and Review
- AP Environmental Science - Running Water: Help and Review
- AP Environmental Science - Ground Water: Help and Review
- AP Environmental Science - Glaciers: Help and Review
- AP Environmental Science - Oceans: Help and Review
- AP Science Help & Review: Water Issues & Water Conservation
- AP Environmental Science - Minerals, Rocks & Soil: Help and Review
- AP Environmental Science - Ecosystems: Help and Review
- AP Environmental Science - Evolving Ecosystems: Help and Review
- AP Environmental Science - Biological Science: Help and Review
- AP Science - Population and the Environment: Help & Review
- AP Environmental Science Agricultural Resources: Help & Review
- AP Science - Rangelands & Forestry: Help & Review
- AP Environmental Science - Mining & Fishing: Help and Review
- AP Environmental Science - Energy Concepts: Help and Review
- AP Environmental Science - Renewable Resources: Help and Review
- AP Environmental Science - Nonrenewable Resources: Help and Review
- AP Environmental Science - Solid and Hazardous Waste: Help and Review
- AP Science - Humans & the Environment: Help & Review
- Environmental Sustainability: Help & Review for AP Science
- Environmental Risk Analysis: Help & Review for AP Science
- AP Science - Environmental Economics: Help & Review
- AP Environmental Science Help & Review: Ethics & Politics