Sensitive 2 - Marvel EDU

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Practice Listening: Multiple Choice, Single Answer ID: #30206 Short Sensitive 2

Instructions ›

Listen to the recording and answer the multiple-choice question by selecting the correct response. Only one response is correct.

Transcript:

Humans can actually tell the difference between ten thousand different smells which sounds impressive, but a dog can be ten thousand times more sensitive to smells than humans. An individual human cell is just as sensitive as a dog's cell but dogs have many more of them, about one billion compared to only ten million cells in humans. Now although humans can recognise ten thousand different smells, it's often difficult for us to name them. If we think about people who are trained to recognise smells, such as perfume tasters or top chefs for example, they aren't necessarily any more sensitive with their nose than an average person. They're just better retrieving the names of the smells from memory.

According to the speaker, a dog’s sense of smell is better than a human's because

* Listen to the recording and select the correct answer

its cells are more sensitive. it has a better memory. it has more cells. it trains itself effectively.

Result:

AI explanationShows the answer. Tap to open.

Option 3: "it has more cells."

Explanation: The text clearly states that dogs have about one billion smell cells compared to only ten million in humans. This significant difference in the number of cells directly supports the conclusion that a dog's sense of smell is better than a human's.

Option 1: "its cells are more sensitive."

Explanation: While the text mentions that an individual human cell is just as sensitive as a dog's cell, it does not support the idea that a dog's sense of smell is better because its cells are more sensitive. This option misinterprets the information provided.

Option 2: "it has a better memory."

Explanation: The text states that trained individuals, like perfume tasters, are not necessarily more sensitive but are better at retrieving names from memory. This indicates that memory is not the reason for a dog's superior sense of smell, making this option incorrect.

Option 4: "it trains itself effectively."

Explanation: The text does not mention that dogs train themselves effectively to enhance their sense of smell. Instead, it focuses on the biological difference in the number of smell cells, making this option irrelevant to the question.

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