Which of the following are common adaptations for deep-sea bony fish species?

• A. Large lungs for increased oxygen storage
• B. Bioluminescence for attracting prey
• C. Bright coloration for camouflage
• D. Thick fur for insulation

Answer: (B)

Verified step by step guidance

1. Begin by understanding the environment of deep-sea habitats. These areas are characterized by high pressure, low temperatures, and complete darkness, which influence the adaptations of organisms living there.
2. Consider the role of bioluminescence in deep-sea fish. Bioluminescence is the ability of organisms to produce light through chemical reactions. This adaptation is useful for attracting prey, communication, and camouflage in the dark ocean depths.
3. Evaluate the necessity of large lungs for deep-sea fish. In the deep sea, oxygen is scarce, but fish have adapted to low oxygen environments through efficient gill structures rather than large lungs, which are not common in fish.
4. Analyze the function of bright coloration. In deep-sea environments, bright coloration is not advantageous for camouflage due to the lack of light. Instead, many deep-sea fish are dark or transparent to blend into their surroundings.
5. Consider the presence of thick fur. Thick fur is an adaptation for insulation in cold environments, but it is not found in fish. Fish rely on other mechanisms, such as antifreeze proteins, to survive cold temperatures.