Set 9: Text Structure (Intermediate)
Explanation
PASSAGE
Sympatric speciation occurs without geographic isolation. A subset of a population develops a new niche within the same range. Over time, behavioral or temporal barriers preventing interbreeding arise, leading to distinct species sharing the same space.
Which choice best describes the process?
Detailed Answer Explanation
This question tests your understanding of how the text is organized. Condition: No isolation. Mechanism: New niche (Specialization). Result: Barriers/Species. Authors structure their writing purposefully to guide readers through their ideas. Identify the organizational pattern (cause-effect, compare-contrast, problem-solution) and how each part contributes to the whole. Authors choose organizational patterns deliberately to enhance their message. Recognizing whether a text uses chronological order, cause-effect, compare-contrast, or problem-solution helps you understand the author's purpose and follow the logic.
Key Evidence:
• "without geographic isolation"
• "new niche"
• "same space"
Why others are wrong: B (Allopatric.), A (Speciation, not hybrid.), C (Allopatric.).
🎯 Keep Practicing!
Master all sections for your best SAT score