Question 7·Easy·Rhetorical Synthesis
While researching plant adaptations to arid environments, a student has taken the following notes:
- Cacti store water in thick, fleshy stems, allowing them to survive long dry periods.
- Saltbush tolerates saline soils by excreting excess salt through tiny pores in its leaves.
- Both are desert plants adapted to scarce water.
The student wants to emphasize a difference in how cacti and saltbush cope with their environments. Which choice most effectively uses relevant information from the notes to accomplish this goal?
For rhetorical synthesis questions based on notes, underline the task phrase (for example, “emphasize a difference”). Then check each option for (1) whether it uses specific note details and (2) whether it matches the required relationship (contrast vs. similarity). Eliminate options that mention only one subject or that present the wrong relationship, and choose the option that most directly accomplishes the stated goal in a single sentence.
Hints
Focus on the task word: difference
The question specifically asks to emphasize a difference between cacti and saltbush. Ask yourself: which option clearly contrasts what each one does?
Check how many plants are mentioned
Look at each option and see whether it talks about both cacti and saltbush, or just one, or desert plants in general. To show a difference between two things, both should appear in the sentence.
Use the notes directly
Compare the answer choices with the bullet points: which choice uses the specific information about cacti (water storage in stems) and saltbush (excreting salt through leaf pores) rather than just summarizing generally?
Step-by-step Explanation
Understand the goal of the sentence
The prompt says the student wants to emphasize a difference in how cacti and saltbush cope with their environments. So the best choice should:
- Mention both cacti and saltbush.
- Use specific adaptations from the notes.
- Make the contrast between the two clear (often using words like "whereas" or "while").
Eliminate choices that don’t show a difference between the two plants
Evaluate each option against the goal:
- The choice about both plants being adapted to scarce water emphasizes a similarity, not a difference.
- The choice describing only saltbush cannot compare it with cacti.
- The choice describing only cacti cannot compare it with saltbush. Only one choice both mentions both plants and contrasts their coping methods.
Select the option that directly contrasts the two adaptations
The correct choice must use the notes to contrast:
- Cacti storing water in thick, fleshy stems.
- Saltbush excreting excess salt through tiny pores in its leaves. The option that does this is: "Cacti store water in thick, fleshy stems, whereas saltbush excretes excess salt through tiny pores in its leaves."