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Energy Flow and Matter Cycling
Grade Level
AP Biology
APB.432 Energy Flow and Matter Cycling
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A whale dies and sinks to the deep ocean, supporting scavengers and microbes for years. Which statement correctly distinguishes the whale's energy and matter?
A
The carcass recycles heat into new whale biomass, while atoms are destroyed in the deep ocean.
B
The whale carcass supplies chemical energy that flows to scavengers and microbes, while its carbon, nitrogen, and phosphorus atoms can enter deep-sea organisms, sediments, and dissolved reservoirs.
C
Scavengers receive energy but no matter because the whale's atoms remain fixed in bone forever.
D
The deep ocean cycles energy because sunlight is absent, but matter flows only to sediments.
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