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20 Cards in this Set
- Front
- Back
True and False: A food chain shows that path that energy takes from the sun through producers and consumers.
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TRUE
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True or False: An organism can be a first-order consumer in one food chain and a third-order consumer in another food chain.
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True
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Plants have no rule in the water cycle.
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False
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True or False: Each time you breathe, you take part in the carbon dioxide-oxygen cycle.
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TRUE
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Nitrogen gas cannot be used directly by most organisms.
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True
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In an ocean food chain, algae are an example of a ______.
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Producer
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The Earth's atmosphere is made up of 78% _______.
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Nitrogen
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When an animal exhales carbon dioxide, it is taking part in the _____________.
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Carbon dioxide-oxygen cycle
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During Photosynthesis, plants give off carbon dioxide as a waste product.
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False
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What do sewage treatment plants clean up?
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Waste Water
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The process by which liquid water changes to water vapor is called _______.
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Evaporation
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Alex put a test tube with a green leaf and yellow BTB into the sunlight. An hour later, she observed that the solution was blue! How can you explain what happened?
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Carbon dioxide was used by the leaf
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What process breaks down carbon compounds in the carbon dioxide - oxygen cycle?
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cell respiration
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True or False: Nitrogen is made usable by bacteria that grow on the roots of some plants.
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True
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When nitrogen is "fixed," what is it changed into?
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nitrogen compounds
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What is the process by which water vapor is changed to liquid water?
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Condensation
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In the nitrogen cycle, what is converted to a usable form?
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nitrogen gas
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True or False: As plants decay, they add carbon compounds to the air and soil.
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True
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When you eat corn, your body receives part of the _________ that the corn received from the Sun.
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Energy
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When you eat a carrot, you are eating "low" on the ____________.
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Food Chain
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