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Gizmos Student Exploration: Prairie Ecosystem Answer Key
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Gizmos Student Exploration: Prairie Ecosystem Answer Key
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Name: Date:Student Exploration: Prairie Ecosystem
Vocabulary: carnivore, consumer, ecosystem, equilibrium, extinct, food chain, herbivore,
organism, population, prairie, producer
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
An ecosystem consists of all organisms (living things) in an area, plus the natural landscape.
A prairie is flat or gently rolling
grassland with few trees, such as in parts
of centralUnited States and Canada.
Organisms often found in a prairie
ecosystem include prairie dogs, swift
foxes, black-footed ferrets, and of course
the grass itself.
1. Which organism (grass, prairie dog, ferret, or fox) do you think is a producer (does not
depend on other organisms for its food)? _Grass
2. Organisms that depend on other organisms for food are consumers. Which consumer you
think is a herbivore (eats plants only)? Prairie Dog
3. Which consumers are carnivores (eat meat)? Ferret and fox
Gizmo Warm-up: Life on the Prairie
1. The population of prairie dogs is all the prairie dogs living in
thevillage. In the Gizmo, what are the starting numbers of
Grass: 4000 Prairie dogs: 25,000
Ferrets: 80 Foxes: 10
2. Click Advance year 10 times. On the DATA tab, look at the Bar graph and the Line
, graph.Do the populations change very much, or are they in equilibrium (stable)? Explain.
are in equilibrium, because the population still almost the same numbers
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