Multiple choice

Which of the following describes the aphotic zone in an aquatic ecosystem?

  1. no sunlight penetrates & photosynthesis can't occur

  2. the very bottom of a bodyof water

  3. the shallow, near-shore zone

  4. uppermost layer-there's enough sunlight for photosynthesis
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The aphotic zone is the deeper part of an aquatic ecosystem where sunlight is insufficient for photosynthesis. Without light, producers cannot survive, which limits the food web in this region.

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