Photophores help deep-sea fish do what?

Photophores help deep-sea fish do what?

• A. Produce light to communicate or attract prey.
• B. Filter water.
• C. Hydrolyze proteins.
• D. Assist with camouflage by light scattering.

Answer: (A)

Photophores are light-producing organs that generate bioluminescence in deep-sea fish. The light can be turned on and off and arranged in patterns to communicate with mates, help individuals recognize conspecifics, or attract prey by drawing attention in the dark waters. This is why producing light to signal or lure prey is the best description of what photophores do. They aren’t used to filter water, and they don’t hydrolyze proteins. While light can play a role in camouflage in some deep-sea organisms, the mechanism here is emission of light to communicate or attract prey, not scattering light for concealment.