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assignment - 10. cycles and energy flow
attempt 2 of 2
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section 3 of 6
section 30f 6
question 3 of 9
x
which of the following is not one of the ways that weathered nutrients can return to an ecosystem's environment?
dissolved in water
released into the atmosphere as a gas
taken from the soil by plants
taken from plants by animals
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Taken from plants by animals.

Explanation:

The following that is not one of the ways that weathered nutrients can return to an ecosystem's environment is: taken from plants by animals.

i think that d. wind is the answer.   i missed the question when i answered a. currents.

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.