Ecosystem Basic
Food chains and web
population dynamics
human impact
conservation
100

This is a community of living organisms interacting with their physical environment.

What is an ecosystem?

100

This organism makes its own food through photosynthesis.

What is a producer?

100

The number of individuals per unit area.

What is population density?

100

The process of cutting down and clearing forests.


 What is deforestation?

100

Protecting and preserving natural resources and the environment.


What is conservation?

200

These are the living parts of an ecosystem, like plants and animals.

 What are biotic factors?

200

This organism eats producers.

What is a primary consumer or herbivore?

200

 Factors that limit population growth, such as food, water, and space.

   

What are limiting factors?

200

The release of harmful substances into the environment.

 What is pollution?

200

 A species at risk of extinction.


What is an endangered species?

300

These are the non-living parts of an ecosystem, like sunlight and water.

What are abiotic factors?

300

 A diagram that shows the flow of energy from one organism to another.

What is a food chain?

300

The maximum number of individuals an environment can support.


What is carrying capacity?

300

The increase in Earth's average temperature due to greenhouse gases.

   

 What is global warming (or climate change)?

300

 An area set aside for the protection of wildlife and habitats.


 What is a national park (or nature reserve)?

400

The process where plants convert sunlight into energy.

 What is photosynthesis?

400

This organism eats other consumers.

What is a secondary consumer or carnivore/omnivore?

400

The study of how populations change over time.


What is population dynamics?

400

The variety of life in the world or in a particular habitat or ecosystem.

   

What is biodiversity?

400

Using resources in a way that meets the needs of the present without compromising the ability of future generations to meet their own needs.

  

What is sustainable development?

500

The place where an organism lives and provides the resources it needs.

 What is a habitat?

500

 A complex network of interconnected food chains.

   

What is a food web?

500


A rapid population increase.





 What is exponential growth?






500

The introduction of non-native species to an ecosystem, often with negative consequences.


What is an invasive species?

500


The restoration of a damaged ecosystem to its natural state.





 What is ecological restoration?