TEAS 7 Reading Comprehension Diagnostic Test (45 Questions)
Brilliant Octopuses
What is the main idea of the passage?
Researchers have observed octopuses to be startlingly brilliant creatures is the correct answer.
This answer contains the main idea of the entire passage. The main idea is that octopuses are very intelligent creatures, and the rest of the passage contains details that illustrate this point. This particular sentence describes the main idea without including smaller details.
In 2010, a German octopus named Paul was even said to have correctly predicted the outcome of all seven of Germany’s games during the South African World Cup.
This is incorrect. This sentence is a very specific detail showing one example of an intelligent octopus. It is incorrect because it does not highlight the main idea of the passage.
Further evidence of the intelligence of octopuses can be found in their desire to play, a behavioral trait of exceptional animals.
This is incorrect. This is the topic sentence in the third paragraph that describes another reason why octopuses are intelligent. It is incorrect because it is only about how octopuses enjoy playing, it does not include all of the reasons why octopuses are considered intelligent.
Octopuses remain a common animal for humans to keep and study in captivity.
This is incorrect. The passage mentions the behavior of several octopuses kept in captivity, but this is not the main idea.
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