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Which statement describes all primary producers?

A. All harness the energy of sunlight through the process of photosynthesis.
B. All take in energy to assemble energy-rich compounds.
C. All are small, single-celled organisms, such as bacteria and algae.
D. All take in food and break it apart to release energy.

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Answer:

The correct answer is option B. All take in energy to assemble energy-rich compounds.

Explanation:

One characteristic that distinguish primary producers from other organisms is that  all take in energy to assemble energy-rich compounds. Primary producers role in the ecosystem is to produce organic compounds from abiotic sources that they use as energy. These abiotic sources include the sunlight ( in the case of phototroph and photoautotroph), and carbon dioxide (chemolithotrophs).

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