Ecosystems and Habitats
An ecosystem is a community of living things interacting with each other and their non-living environment in a particular habitat.
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An ecosystem is a community of living things interacting with each other and their non-living environment in a particular habitat.
- A habitat is where an organism lives
- A population is one species in an area
- A community includes all populations
🧠 Quick quiz
Three questions. Score 2 or more to complete the topic.
What is Ecosystems and Habitats?
Within Biology, which covers cells, the human body, genetics, evolution, plants and ecosystems: the science of living things, this topic explains Ecosystems and Habitats. Biology topics show how living things work, from the cell up to whole ecosystems, with models you can explore step by step.
Check that you can explain Ecosystems and Habitats in your own words and give one example from everyday life. If you can do that, you have understood the core idea.
Understanding Ecosystems and Habitats helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.
Ecosystems and Habitats in detail
An ecosystem is a community of living organisms interacting with each other and with their non-living environment. A habitat is the place where an organism lives, and a population is all the organisms of one species in an area, while a community is all the populations in the ecosystem.
Abiotic (non-living) factors include temperature, light, water and soil pH, and biotic (living) factors include food, predators, disease and competition. Ecosystems can be as small as a pond or as large as a rainforest. Understanding them helps explain why organisms live where they do.
How the interactive helps you understand Ecosystems and Habitats
Watch the population model in the interactive. Use any sliders or buttons it offers to change the values and see how the population model responds.
Before you change anything, predict the result. Then change one value at a time and check whether your prediction was right. This is a quick way to build a correct mental model of Ecosystems and Habitats.
Real-life uses and examples
- Explain how Ecosystems and Habitats helps a living thing stay alive, using a plant or animal example.
- Connect Ecosystems and Habitats to health, food and medicine in everyday life.
- Use Ecosystems and Habitats to interpret a diagram, graph or microscope image from a practical.
Common mistakes to avoid
- Using everyday words, such as “energy” or “bad”, without their scientific meaning.
- Listing the steps of a process without saying how one step causes the next.
- Learning the definition without testing it. Use the quiz and the interactive to check that you can apply the idea.
Frequently asked questions about Ecosystems and Habitats
What is Ecosystems and Habitats?
An ecosystem is a community of living things interacting with each other and their non-living environment in a particular habitat.
What are the most important points about Ecosystems and Habitats?
The main points are: A habitat is where an organism lives; A population is one species in an area; A community includes all populations.
Why is Ecosystems and Habitats useful?
Understanding Ecosystems and Habitats helps you explain how living things stay alive and respond to their surroundings, which is central to biology exams.
How can I practise Ecosystems and Habitats?
Open the interactive at the top of this page and change the controls one at a time. Predict the result before each change, then take the three-question quiz. A score of two or more marks the topic as complete on this device.
Which topics are related to Ecosystems and Habitats?
Related topics in Biology include The Carbon Cycle, Decomposers and Decay, Population Dynamics.