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Topic 9 Lesson 4 Test

Enter the letter for the matching Answer
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1.
decomposers break down organisms wastes or dead bodies allowing matter to return to the ______ for new plants to use nutrients to grow.
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2.
_________ travels to consumers when they eat plants or animals.
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3.
The matter travels to _______________ when they eat plants or animals.
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4.
What would happen over time to matter in an ecosystem if decomposers were removed? ( disussion)
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5.
Plants and trees ______ carbon dioxide to make food/grow so it gets stored in plants.
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6.
- Animals take in carbon dioxide when they _____ plants
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7.
Keep in mind: ____ we breathe has been cycled
A.
consumers
B.
air
C.
soil
D.
use
E.
matter
F.
Organisms would not decay and the amount of matter available for organisms would decrease.
G.
eat
Type the Answer that corresponds to the displayed Question.
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8.
_______________ break down organisms wastes or dead bodies allowing matter to return to the soil for new plants to use nutrients to grow.
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9.
Animals/humans breathe out ________ _________.
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10.
decomposers break down organisms wastes or dead bodies allowing matter to return to the soil for new plants to use ____________ to grow.
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11.
When you flush a toilet, materials from the toilet flow through underground pipes to _____________ plant & the clean water is returned to nearby water sources.
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12.
energy gets used up as organisms move, digest food, think, breathe, talk, and more so all organisms need food to ___________ their energy supply.
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13.
__________ gets used up as organisms move, digest food, think, breathe, talk, and more so all organisms need food to recharge their energy supply.
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14.
Keep in mind: air we breathe has been __________
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15.
Decomposers cause dead plants to __________ carbon dioxide into the air.

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