Geography > GIZMOS > Forest_Ecosystem_Gizmo ( ALL ANSWERS CORRECT ) (All)

Forest_Ecosystem_Gizmo ( ALL ANSWERS CORRECT )

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Student Exploration: Forest Ecosystem Vocabulary: consumer, decomposer, inorganic, organic, organism, population, producer Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. When a ran ... cher puts cattle in a pasture, what happens to the amount of grass in it? amount of grass will decrease 2. If someone adds millions of small fish to a lake, how would the number of big fish change? the number of big fish will increase Gizmo Warm-up The Forest Ecosystem Gizmo™ shows you the effects of adding organisms to, or taking them from, a forest. An organism is any living thing. To start, do the following: ● Press Reset on the Gizmo. ● Click Advance year a couple times to see two years of growth. ● Remove all deer from the forest by clicking the minus (-) button until none remain. ● Click Advance year a couple more times. 1. Select the DATA tab. Select Pictograph and click the Tree to show the size of the tree population for the past several years. How did removing deer affect the tree population? Why do you think this happened? the amount of trees increased because the deers weren't eating from the trees 2. Under Choose organism, select the Mushroom. How did losing deer affect the mushroom population? Explain why this occurred. the mushrooms increased because there weren't any deer to eat the mushrooms [Show More]

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