Okuma AnlamaSoru #11473
Illuminating the Deep Ocean
In the pitch-black abyss of the deep ocean, where sunlight never penetrates, bioluminescence is the dominant mode of visual communication. Over seventy percent of all deep-sea species—ranging from gelatinous siphonophores to predatory anglerfish—possess the ability to generate living light. Unlike human incandescent lighting, which wastes ninety percent of its energy as thermal radiation, bioluminescence is remarkably cold, converting nearly all chemical energy directly into photons via the oxidation of luciferin catalyzed by the luciferase enzyme. Creatures exploit this luminescence for sophisticated behavioral functions: deep-sea anglerfish dangle glowing bioluminescent lures to entice unsuspecting prey directly toward their jaws, while hatchetfish emit downward-directed blue light from ventral photophores to match downwelling sunlight, effectively cloaking their silhouettes from apex predators below. It is stated in the passage that deep-sea anglerfish use their glowing lure primarily to ----.
- A)attract prey organisms into close striking distance in complete darkness
- B)illuminate deep submarine shipwrecks for research photography
- C)frighten away all potential mates during breeding seasons
- D)warn other fish that a volcanic eruption is about to happen
- E)filter microplastic polymers from surrounding salt water
Cevabı ve çözümü göster
Doğru cevap: A) attract prey organisms into close striking distance in complete darkness
Çözüm: Metinde fener balığının (anglerfish) ışıklı yemini avları kendine çekmek için kullandığı ("entice unsuspecting prey directly toward their jaws") ifade edilmiştir. Doğru cevap A'dır.