Cloze TestSoru #8926
Deep-Sea Bioluminescence
In the perpetual darkness of the deep ocean, bioluminescence is not an anomaly but a ubiquitous survival strategy. More than seventy percent of abyssal creatures are estimated to generate their own cold light. Some species produce luminescence endogenously through the luciferin-luciferase reaction, whereas others host symbiotic colonies of glowing bacteria in specialized photophores. Marine organisms employ light for diverse purposes: lanternfish flash bioluminescent bellies to blend with faint surface downwelling, thereby counterilluminating themselves against predators below. Deep-sea anglerfish dangle luminous lures to entangle curious prey. Biologists are continually discovering new fluorescent proteins, which have already provided revolutionary tools for biomedical cellular imaging. Choose the most appropriate option for blank (I) in the text below:
In the perpetual darkness of the deep ocean, bioluminescence is not an anomaly (I)---- a ubiquitous survival strategy. More than seventy percent of abyssal creatures are estimated to generate their own cold light. Some species produce luminescence endogenously through the luciferin-luciferase reaction, (II)---- others host symbiotic colonies of glowing bacteria in specialized photophores. Marine organisms employ light for diverse purposes: lanternfish flash bioluminescent bellies to blend with faint surface downwelling, (III)---- counterilluminating themselves against predators below. Deep-sea anglerfish dangle luminous lures (IV)---- entangle curious prey. Biologists are continually discovering new fluorescent proteins, which have already provided revolutionary tools (V)---- biomedical cellular imaging.
In the perpetual darkness of the deep ocean, bioluminescence is not an anomaly (I)---- a ubiquitous survival strategy. More than seventy percent of abyssal creatures are estimated to generate their own cold light. Some species produce luminescence endogenously through the luciferin-luciferase reaction, (II)---- others host symbiotic colonies of glowing bacteria in specialized photophores. Marine organisms employ light for diverse purposes: lanternfish flash bioluminescent bellies to blend with faint surface downwelling, (III)---- counterilluminating themselves against predators below. Deep-sea anglerfish dangle luminous lures (IV)---- entangle curious prey. Biologists are continually discovering new fluorescent proteins, which have already provided revolutionary tools (V)---- biomedical cellular imaging.
- A)nor
- B)and
- C)so
- D)but
- E)for
Cevabı ve çözümü göster
Doğru cevap: D) but
Çözüm: "Not X but Y" (X değil Y) kalıbı: "not an anomaly but a ubiquitous survival strategy" (bir anormallik değil, yaygın bir hayatta kalma stratejisi). Doğru cevap D'dir.