What are photophores?

What are photophores?

• A. Bone structures used for buoyancy.
• B. Digestive glands in fish.
• C. Nervous tissue.
• D. Light-producing organs.

Answer: (D)

Photophores are light-producing organs on some marine animals. They generate light through bioluminescence, either via chemical reactions in specialized light-producing cells or by hosting bioluminescent bacteria. The glow helps with camouflage in deep water, attracting prey, or signaling to others, depending on the species. They are not bone structures used for buoyancy, digestive glands, or nervous tissue—photophores are specifically dedicated to emitting light.

Photophores are light-producing organs on some marine animals. They generate light through bioluminescence, either via chemical reactions in specialized light-producing cells or by hosting bioluminescent bacteria. The glow helps with camouflage in deep water, attracting prey, or signaling to others, depending on the species. They are not bone structures used for buoyancy, digestive glands, or nervous tissue—photophores are specifically dedicated to emitting light.