Ecosystems

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What are the main predators in midwater?
Fish
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what is the name for an organism that feeds on other dead organisms?
Decomposers and scavengers
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At what part is their plenty of light and oxygen?
Pond surface
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What is the role of the producer?
To provide basic nutrients to ther organisms in the food chain
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What does a food web do?
A food web shows how all the organisms in the ecosystem interlink
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What kind of change to the ecosystem is disease?
Natural factor
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What is eutrophication?
Hyper-nutrition due to fertiliser pollution in aquatic ecosystems
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What is leaching?
When nutrients are washed out the sooil by heavy rainfall
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What is the name of a large scale ecosystem?
Biome
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Why do you find higher temperatures in lower lattitudes?
Becasue the sun rays have less distance to travel to the equator so are more concentrated.
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Are the tropics found in higher or lower lattitudes?
Lower
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Are the polar regions found in higher or lower lattitudes?
Higher
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Why is it colder in higher lattitudes?
The sun's rays travel a longer distance and are spread over a larger surace area so have less concentration
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What air pressure is created when air rises?
Low air pressure
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What air pressure is created when air sinks?
High air pressure
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What kind of air pressure do rainforests have?
Low air pressure
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What weather is commonly found at high pressure?
Dry, warm and settled
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What weather is commonly found at low pressure?
Cloudy and rainfall.
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What is the pressure belt?
A band of high or low pressure found approximately 30° north and 30° south of the Equator.
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What is a consumer?
An organism that obtains its energy by eating other organisms.
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Other cards in this set

Card 2

Front

what is the name for an organism that feeds on other dead organisms?

Back

Decomposers and scavengers

Card 3

Front

At what part is their plenty of light and oxygen?

Back

Preview of the front of card 3

Card 4

Front

What is the role of the producer?

Back

Preview of the front of card 4

Card 5

Front

What does a food web do?

Back

Preview of the front of card 5
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