SAT Reading and Writing Practice Question #682 (Hard (800)) | Test Citadel
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SAT Reading and Writing Difficulty: Hard (800)

Digital SAT Reading and Writing Practice Question #682

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

Some evolutionary biologists suggest that the rapid speciation of cichlid fishes in Lake Victoria is driven primarily by sexual selection—specifically, female mate choice based on vivid male coloration—rather than by natural selection adapting the fish to different ecological niches. However, recent genomic studies indicate that the specific genes dictating visual sensitivity in these females have heavily co-evolved with the varying ambient light conditions at different depths of the lake. Which of the following, if true, most weakens the initial suggestion regarding rapid speciation?
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Socratic AI Engine Step-by-Step Derivation
0ms Precomputed
Tactical Insight (Hint 1)

Rely strictly on explicit statements in the passage. Eliminate any option that requires external assumptions or twists the author's stated nuance.

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

The 'initial suggestion' makes a clear distinction: cichlid speciation is driven by sexual selection (female choice based on color) RATHER THAN natural selection (ecological niches). The second sentence introduces a twist: female visual gen...

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

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