A - Saprobes are organisms that feed on dead or decaying organic matter.
Answer:
B. Only from the ocean to earth's surface
Explanation:
The biosphere is known as the layer of the Earth where life exists. It reaches a peak of ten kilometers above sea level, which is used by some birds in flight while the biosphere go to depths as low as 8 kilometers deep or the bottom of the ocean.
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There is no diagram here, so I cannot answer.
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