Food Chains/Webs
The Nitrogen and Phosphorus Cycles
The Carbon Cycle
Primary Succession
Secondary Succession
100
What is a food chain?
A way of showing one possible feeding relationship in an ecosystem.
100
Name 1 place that nitrogen can be found.
Plants. Ocean. Atmosphere. Soil.
100
How is carbon added?
When you breathe and when fossil fuels are burned.
100
How does primary succession start?
With nothing (no ecosystem).
100
Does a fire cause secondary succession?
Yes!
200
How is energy transferred from one organism to the next?
By one organism eating the other.
200
What is needed to cycle nitrogen between the atmosphere and the surface of the Earth?
Bacteria.
200
How is carbon removed?
Producers.
200
What is an example of primary succession?
Rocks, sand dunes, newly formed islands.
200
What type of plant is the last to grow in secondary succession?
Trees.
300
What is a food web?
A way of showing as many feeding relationships as possible in an ecosystem.
300
How can humans add to these cycles?
By using fertilizers.
300
What is carbon?
A component of proteins, fats, and carbohydrates. *I will also accept "an element".
300
What is the final ending point of primary succession?
A climax community.
300
What starts secondary succession: A volcano? A fire? Or a tidal wave?
All three can start secondary succession.
400
What role do the decomposers play in a food chain or web?
They decompose dead organisms so the nutrients return to the soil and help producers grow.
400
Name 1 thing the nitrogen and phosphorus cycles have in common.
They can both be added to by humans using fertilizer. Consumers must consume other consumers or plants in order to get these minerals.
400
What could the release of too much carbon contribute to?
Global Warming
400
What is the first species to colonize a bare rock?
Bacteria or lichens.
400
What happens right after the ecosystem is destroyed?
Nothing. You're left with ash and/or a destroyed ecosystem. *I will also accept "pioneer species start to grow"!
500
What does a food chain start with and end with?
Starts with a producer and ends with a decomposer.
500
Name 2 ways that phosphorus can be added to the cycle.
Erosion. Runoff. Fertilizer. Decay.
500
How is carbon stored? Give 2 ways.
Fossil fuels. In plants. In the ocean. Limestone.
500
What do lichens do to the rock?
They break it down.
500
What happens after 10 years?
Shrubs grow.
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