The process that changes atmospheric nitrogen into compounds usable by living things is called ___
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lifesaver
Give 25 points!
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fairy
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25
shark
Other team loses 20 points!
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thief
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25
15
Which organism might you expect to find a trophic level I?
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15
What organisms help break down dead leaves in an ecosystem?
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15
Which step in the water cycle occurs in plants?
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banana
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star
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rocket
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banana
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15
Model of energy transfer showing how the food chains in a community are interconnected.
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15
Which process helps keep temperatures on Earth from becoming too hot or too cold?
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15
What is the source of most energy on Earth?
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15
Average weather conditions in an area over time.
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15
During the carbon cycle, __ take in carbon dioxide from the atmosphere.
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15
Model showing how energy flows in an ecosystem.
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baam
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star
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rocket
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baam
Lose 20 points!
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25
Predict what would happen if all the nitrogen-fixing bacteria in an ecosystem were removed.
Plants and animals wouldn't receive nitrogen compounds and this could cause disease and death among plants. This could lead to decline in animal populations.
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15
A person who ate a salad made of lettuce, tomatoes, cheese, and ham is a(n) __.
