A Major Difference Between Primary and Secondary Production in Ecosystems

question 34

Multiple Choice

A major difference between primary and secondary production in ecosystems is that secondary production involves

• A) using metabolism to release nutrients for use, whereas primary production does not.
• B) obtaining energy from organic, rather than inorganic, compounds.
• C) obtaining energy from sunlight, rather than from chemical compounds.
• D) plants, seaweeds, and algae, whereas primary production involves animals.
• E) production of different classes of organic compounds than primary production does.

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