Loading question...
You are in free guest mode. Timed Practice Revision List Attempt History Progress Tracking Create a free account to unlock these tools
Prev Next
Practice Listening: Select Missing Word ID: #4232 Short Seinfeld science
Instructions ›
You will hear a recording. At the end of the recording the last word or group of words has been replaced by a beep. Select the correct option to complete the recording.
And now for another episode of Seinfeld science. On Monday we talked about cooler sports uniforms, one of George Costanza’s crusades. Well, now it’s Kramer’s idea for a cologne that would make you smell like the beach. You stink! Scientists from the University of East Anglia have just cloned the gene responsible for that briny, fishy scent we associate with the seaside. Andrew Johnston and his colleagues harvested some bacteria from a coastal salt marsh. And they isolated a gene that makes dimethyl sulfide, a gas whose essence is pure eu d’ocean. In its natural environment, dimethyl sulfide helps sea birds sniff out a meal - in this case the plankton that produce it. And the compound is generated in such large quantities that it even forms clouds over the ocean that help cool the Earth’s climate. Although Johnston and his team cloned the gene from a bacterium that thrives in the sea, they also found it in some unexpected places, including microbes that live in the roots of plants. Because these species are so different, he suspects that the bugs got the gene through a process akin to mating. Now, why they want it is anybody’s guess. Maybe, like Kramer, - they just like the smell.
* Click on the correct answer

Result:

AI explanationShows the answer. Tap to open.
Option 2: "they just like the smell"

Explanation: This option aligns perfectly with the text's concluding thought, which suggests that the reason for the gene's presence in different species could simply be that 'they just like the smell.' This reflects the playful tone of the text and connects directly to the mention of Kramer’s idea.

Option 1: "they don't have a guess"

Explanation: This option contradicts the text, which states, 'Now, why they want it is anybody’s guess.' This implies that there is uncertainty about the reason, but it does not suggest that they lack a guess altogether.

Option 3: "they harvested some bacteria from salt marsh"

Explanation: While the text mentions that scientists harvested bacteria from a coastal salt marsh, this option does not complete the sentence meaningfully in the context of why the gene is present in different species. It provides factual information but does not address the question of motivation.

Option 4: "they helped sea birds"

Explanation: This option misinterprets the text. Although dimethyl sulfide helps sea birds find food, the sentence is about the motivation for the gene's presence in different species, not about the function of the compound. Thus, it does not fit the context of the question.

The rest of this explanation is for members. Sign in free to read why the other options are wrong, key words and tips.

Sign in to read the full explanation

With a free account: Retry and compare every attempt.
Be the first! No community answers here yet. Submit yours and help others learn.
Saving...