Organism Describe how organisms produce, transmit, and receive sound of various frequencies Type of Sound Human as point of reference (infrasonic audible 1 ultrasonic) audible The human ear can easily detect frequencies between 20 Hz and 20 kHz Hence sound waves with frequency ranging from 20 Hz to 20 KHZS known are audible sound The human ear is sensitive to every minute pressure difference in the air if they are in the audible frequency range 1. Human 17 Hz (lower limit) -infrasonic Elephant 2. 23 Hz (lower limit) -audible Cow/Carabao 3 Dog 44 000 Hz (upper limit) -ultrasonic 110 000 HZ (upper limit) - ultrasonic 4 Bat 5 64 000 Hz (upper limit) -ultrasonic Cat
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-Bat
4.Bats produce echolocation by emitting high frequency sound pulses through their mouth or nose and listening to the echo. With this echo, the bat can determine the size, shape and texture of objects units environment.
-Cat
5.The behavioral audiograms of two cats we're determined in order to establish the upper and lower hearing limits for the cat. The hearing range of the cat for sounds of 70 dB SPL Extends from 48 Hz to 85 kHz, giving it one of the broadest hearing ranges among mammals. Analysis suggests that cats evolved extended high-frequency hearing without sacrifice of low-frequency hearing
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