Podcast Beta
Questions and Answers
Biomass is calculated as the mass of living organisms present at each ______ level in a given sample size.
trophic
Yellow indicates ______ energy in the flow of energy.
usable
Green arrows show the continual recycling of ______ nutrients.
chemical
The ways in which an element—or compound such as water—moves between its various living and nonliving forms and locations in the biosphere is called a ______ cycle.
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Biogeochemical cycles important to living organisms include the water, carbon, nitrogen, phosphorus, and ______ cycles.
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The six most common elements in organic molecules—carbon, nitrogen, hydrogen, oxygen, phosphorus, and ______—take a variety of chemical forms.
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Water, which contains hydrogen and oxygen, is essential for living ______.
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Geologic processes— such as weathering of rocks, erosion, water drainage, and the subduction of continental plates—all play a role in this recycling of ______.
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Green arrows show the continual recycling of ______ nutrients.
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The flow of energy is shown with yellow and red arrows. Yellow indicates ______ energy.
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