SAT Reading and Writing Practice Question #296 (Hard (770)) | Test Citadel
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SAT Reading and Writing Difficulty: Hard (770)

Digital SAT Reading and Writing Practice Question #296

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

Evolutionary biologist Dr. Aris Vlahos argues that bioluminescence in the deep-sea cephalopod genus *Vampyroteuthis* did not primarily evolve as a predatory lure, as historically assumed, but rather as a counter-illumination camouflage mechanism. To support this, Vlahos notes that the creature's photophores (light-producing organs) are predominantly concentrated on its ventral (underside) surfaces, and the emitted light precisely matches the wavelength of downwelling sunlight. However, paleontologist Dr. Serena Lin counters that the metabolic cost of synthesizing the luciferase enzyme required for this bioluminescence is exorbitant; thus, sustaining this camouflage continuously over the creature's lifespan would be evolutionarily unsustainable. Which of the following, if true, would most directly weaken Dr. Lin’s objection to Vlahos’s hypothesis?
Select Your Answer:
Socratic AI Engine Step-by-Step Derivation
0ms Precomputed
Tactical Insight (Hint 1)

Pinpoint the exact author claim or researcher hypothesis first. The correct option must provide direct empirical backing without overstepping scope.

Elimination Framework (Hint 2)

Elimination Strategy: In digital reading/writing, 3 out of 4 choices contain an active flaw (half-right/half-wrong, too extreme, or wrong transition type). Cross out options with absolute words like "always", "proves", or "never".

Masterclass Solution & Distractor Trap Analysis

To master this Command of Evidence (Weaken) question, you must first precisely identify the exact core of Dr. Lin’s objection. Dr. Lin argues that Vlahos's camouflage hypothesis is wrong because "the metabolic cost of synthesizing the lucif...

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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