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Listening Quiz: Dùng eDNA Để Theo Dõi Đời Sống Thủy Sinh – Advanced Level
Th7 18, 2024
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bởi
Anna Phạm
trong
Tiếng Anh dành cho Nhà sinh học (English for Biologist)
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1.
What is the conversation mainly about?
Why catching fish is the only reliable survey method
How eDNA is used to monitor aquatic life
How to build PCR machines for laboratories
A new way to clean polluted water samples
Explanation:
The speakers discuss what eDNA is, how it helps detect aquatic species, its limits, and why it is useful for monitoring aquatic life.
2.
What does Jessica say eDNA stands for?
Experimental Data Analysis
Environmental DNA
Ecological Detection Network
Extra DNA
Explanation:
Jessica directly says that eDNA stands for environmental DNA.
3.
According to Jessica, how does eDNA help monitor aquatic life?
It removes harmful organisms from lakes
It measures the temperature of water
It detects species by their DNA without catching them
It counts fish by weighing them
Explanation:
Jessica explains that species can be detected by their DNA without catching them.
4.
What can be inferred about eDNA compared with traditional monitoring methods?
It is less harmful and faster
It works only for common species
It requires no laboratory tools
It is always more expensive and slower
Explanation:
Jessica says eDNA is less harmful and faster than traditional methods, so that comparison is supported.
5.
What limitation of eDNA does Jessica mention?
It can only be used in saltwater
It always gives exact fish counts
DNA can degrade quickly in water
It cannot detect any rare species
Explanation:
Jessica says one limit is that DNA can degrade quickly in water.
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