ecosystems Archives - Free ZIMSEC & Cambridge Revision Notes

Science: Ecosystems

An ecosystem diagram. Image credit ck12.org

An ecosystem diagram. Image credit ck12.org ZIMSEC O Level Combined Science Notes: Ecosystems

Is a self-contained system of interdependent organisms and their physical environment
An ecosystem can also be defined as a biological community of interacting organisms and their physical environment.
In an ecosystem a community of living […]
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Impala ecosystem

Natural ecosystem. Image credit wordpress.com ZIMSEC O Level Combined Science Notes: Natural Ecosystems

In a natural ecosystem there is close interaction between the plants and animals
The green plants are the producers
The animals are the consumers
There are several levels of consumers
Primary consumers-these eat plants directly
They are also known as herbivores
Secondary […]
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The savannah. Image credit wildnatureinstitute.org

The savannah. Image credit wildnatureinstitute.org ZIMSEC O Level Combined Science Notes: Managing Ecosystems

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A solar pump in a rural marginal area. Image credit massmaninter.com

A solar pump in a rural marginal area. Image credit massmaninter.com ZIMSEC O Level Combined Science Notes: Marginal areas in Zimbabwe

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