Information and IdeasMediumInference from an experiment's control
Information and Ideas practice question
Botanists grew two trays of the same seedlings under identical light and water, but played recorded birdsong to one tray for an hour each day. After six weeks the plants in both trays were the same height, with the same number of leaves. This suggests that ____
Which choice most logically completes the text?
- A. the birdsong had no measurable effect on the seedlings' growth.Correct
- B. birdsong harms seedlings.
- C. the seedlings could not hear the recording.
- D. light and water have no effect on growth.
Answer: A. the birdsong had no measurable effect on the seedlings' growth.
One difference between trays, no difference in outcome: no effect.
Why the other answers are wrong
- B. birdsong harms seedlings.
- Harm would show as smaller plants; they were the same.
- C. the seedlings could not hear the recording.
- Whether plants 'hear' isn't tested; only the growth outcome is.
- D. light and water have no effect on growth.
- Light and water were the same for both, so the experiment says nothing about them.
More Information and Ideas questions
- Medium
Which choice best states the main idea of the text? - Medium
Which choice best states the main idea of the text? - Medium
Which choice most logically completes the text? - Medium
Which choice best states the main idea of the text? - Medium
Which choice best describes data from the table that call the student's claim into question? - Medium
Based on the text, why did Wood and colleagues rely on coprolites rather than on bone collagen to study the mo…
Not affiliated with the College Board. SAT is a trademark of the College Board.