[SAT] Text Structure and Purpose Trap Dissection | AceThePrep

SATReading and WritingText Structure and Purpose

Level 2 Trap Drill

Passage Reference

For over a century, biology textbooks cited lichens as the classic textbook exemplar of a two-way mutualistic symbiosis between a single filamentous fungus (the mycobiont) and a photosynthetic green alga or cyanobacterium (the photobiont). In 2016, however, evolutionary biologist Toby Spribille and his colleagues analyzed the transcriptomes of alpine lichens and discovered a previously undetected third obligate partner: a basidiomycete yeast embedded in the lichen's cortex. This unexpected finding completely upended lichen taxonomy, proving that lichens are not simple bipartite pairings, but complex, tripartite multi-species symbioses.

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Which choice best describes the overall structure of the text?

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Practice More SAT Text Structure and Purpose Questions

Take the interactive diagnostic drill with real-time distractor analysis, Desmos calculator, and SM-2 spaced repetition.

Start Topic Drill

Practice More SAT Text Structure and Purpose Questions

More Text Structure and Purpose Questions in SAT

Practice More SAT Text Structure and Purpose Questions

More Text Structure and Purpose Questions in SAT