TOEFL Reading: ETS-TOEFL阅读机经 - 661Q16664X1BBAN5L$

Paragraph 2 demonstrates the complexity of certain squid by stating that A. the squid employs its bioluminescent light to prevent bacteria from entering its organs B. the squid controls both the color and intensity of the light it produces C. the squid's light has greater intensity than that of fish D. the squid produces the enzyme luciferase when it produces light