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Expression of IdeasMediumGiving one illustrative example

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - Some birds use tools. - Egyptian vultures drop stones on ostrich eggs to break them. - Woodpecker finches use cactus spines to pry insects from bark. - Green herons drop bait on the water to attract fish.

The student wants to illustrate the first note with one example. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. Green herons, for example, drop bait on the water to lure fish within reach.Correct
  2. B. Some birds use tools.
  3. C. Vultures, finches, and herons are birds.
  4. D. Tools are useful to animals.

Answer: A. Green herons, for example, drop bait on the water to lure fish within reach.

One species, one tool, one purpose.

Why the other answers are wrong

B. Some birds use tools.
Restates the claim.
C. Vultures, finches, and herons are birds.
Names birds without their tool use.
D. Tools are useful to animals.
A generality.

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