Okuma Parçası AnaliziSoru #9711
Why are the acoustic signals emitted by stressed plants not perceived by humans?
- A)Plants emit acoustic clicks only when completely submerged in subterranean moisture
- B)They are masked completely by the louder sound of photosynthetic chemical reactions
- C)Their emission frequencies fall in the ultrasonic range beyond human auditory limits
- D)The sounds decay within fractions of a millimeter from the plant's stem surface
- E)Human ears can only detect sound waves produced by animals that possess vocal cords
Cevabı ve çözümü göster
Doğru cevap: C) Their emission frequencies fall in the ultrasonic range beyond human auditory limits
Çözüm: Metinde seslerin 20-100 kHz arasında olduğu ve "frequencies inaudible to human ears" (insan kulağının duyamayacağı) belirtilmiştir. Doğru cevap C'dir.