Flies and Mosquitos - Marvel EDU

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Practice Reading: Multiple Choice, Single Answer ID: #50235 Flies and Mosquitos

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Read the text and answer the multiple-choice question by selecting the correct response. Only one response is correct.

Scientists at Johns Hopkins Medicine meticulously counted brain cells in fruit flies and three species of mosquitos, revealing a number that would surprise many people outside the science world. The insects’ tiny brains, on average, have about 200,000 neurons and other cells, they say. By comparison, a human brain has 86 billion neurons, and a rodent brain contains about 12 billion. Even though these brains are simple (in contrast to mammalian brains), they can do a lot of processing, even more than a supercomputer. They enable the insects to navigate, find food and perform other complicated tasks at the same time.

According to this passage, we can know that fruit flies __

* Click on the correct answer

have about 12 billion neurons and cells in the brain. have more brain cells than rodents. can do more processing than a supercomputer. can't navigate and find food at the same time.

Result:

AI explanationShows the answer. Tap to open.

Option 3: "can do more processing than a supercomputer."

Explanation: The text explicitly states that even though insect brains are simple, they can perform a lot of processing, even more than a supercomputer. This directly supports the claim in this option, making it the correct answer.

Option 1: "have about 12 billion neurons and cells in the brain."

Explanation: The text states that a human brain has 86 billion neurons and a rodent brain contains about 12 billion. It does not mention that fruit flies have 12 billion neurons; instead, it specifies that fruit flies have about 200,000 neurons and other cells. Therefore, this option is incorrect as it misrepresents the information.

Option 2: "have more brain cells than rodents."

Explanation: The passage indicates that fruit flies have about 200,000 neurons, while rodents have about 12 billion. This clearly shows that fruit flies do not have more brain cells than rodents, making this option incorrect.

Option 4: "can't navigate and find food at the same time."

Explanation: The passage mentions that these insects can navigate, find food, and perform other complicated tasks simultaneously. Therefore, this option contradicts the information provided in the text, making it incorrect.

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