SAT Reading and Writing Practice Question #866 (Hard (800)) | Test Citadel
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SAT Reading and Writing Difficulty: Hard (800)

Digital SAT Reading and Writing Practice Question #866

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

In comparative physiological analyses of deep-diving mammals, researchers observed that Weddell seals exhibit severe peripheral vasoconstriction during extended submersions, shunting oxygenated blood almost exclusively to the brain and heart. [____], skeletal muscle tissues rely on unprecedented cellular concentrations of myoglobin to sustain aerobic respiration without receiving fresh circulating arterial blood. Which choice completes the text with the most logical transition?
Select Your Answer:
Socratic AI Engine Step-by-Step Derivation
0ms Precomputed
Tactical Insight (Hint 1)

Ask yourself: Is sentence 2 caused by sentence 1, or is sentence 2 describing another event occurring at the exact same moment across the organism's body?

Elimination Framework (Hint 2)

Test the logical bridge: Replace the transition with 'At the same time'β€”does the sentence flow seamlessly? If yes, look for a temporal concurrency transition.

Masterclass Solution & Distractor Trap Analysis

Sentence 1 establishes that during deep dives, blood is actively directed to the brain and heart. Sentence 2 establishes what the skeletal muscles are doing during that exact same time window (using internal myoglobin stores). Option B ('Si...

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

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