Which sentence best summarizes the benefits of the new silk technology?
Answer(s): A
The statement from the beginning of the passage encompasses all of the benefits of the new silk technology and is consequently the best answer. The other three choices are all strong supporting ideas showing how the technology will work.
Which of the following is NOT a characteristic of the silk brain recording device?
Answer(s): D
This answer is not one of the characteristics of the silk technology. It is a characteristic of an older, simpler brain recording device: "Currently, the simplest devices for recording from the brain are needle-like electrodes that can penetrate into brain tissue."
The author suggests that persistent passivity and imperturbability may be a direct result of which of the following?
Answer(s): B
The author states that "patients with trauma or damage to this structure [the amygdala] exhibit a complete absence of aggression." Earlier in the passage the author indicates that the amygdala is located centrally in the brain's limbic system, which is responsible for emotional regulation.
Which statement is not listed as a detail within the passage?
Answer(s): C
The other statements are directly lifted from the passage. This answer is not part of the passage.
What is the main idea of the passage?
The passage is focused on the amygdala and how scientists have studied its relationship with emotions such as fear and aggression. The other answer choices are too specific or too broad. The correct main idea will always match the scope of the passage.
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