Compare the cycling of water and nutrients through an ecosystem to the cycling of blood in your cardiovascular system. What is the source of energy in each case?

The cycling of water and nutrients through an ecosystem is powered mainly by the sun, while the cycling of blood in the cardiovascular system "powered" by the heart.

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Explanation: The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance