Natural Science CLEP Prep Practice Exam

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An example of bioluminescence is

  1. The movements of plankton

  2. A candle burning

  3. A red fox hunting

  4. Fireflies

The correct answer is: Fireflies

Bioluminescence is a natural process in which living organisms produce light. While the movements of plankton, a candle burning, and a red fox hunting are all examples of sights we see in the dark, only fireflies have the ability to produce light through biochemical reactions in their bodies. These reactions produce light without producing heat, making bioluminescent organisms unique from other sources of light. This is why fireflies are considered an example of bioluminescence.

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