The question is based on the following passage. Although most animals and some plants detect and respond to sound vibrations, the precise sensitivity that we call hearing is rare in the living world. It is highly developed only in birds and mammals, and the same operational system applies in all vertebrate auditory systems. Sound waves cause a liquid within the organism's auditory apparatus to vibrate. These vibrations are picked up by receptors that transmit signals to nerve cells. These cells then communicate the sound to the brain. Humans can hear vibrational frequencies of 20 to 20,000 cycles per second; cats respond to frequencies of up to 50,000 cycles per second; and porpoises and bats pick up frequencies of 100,000 cycles per second. Which statement does the passage support? A. Cats and porpoises are adapted to hearing low frequencies. B. Some frequencies are beyond the human hearing range. C. Ears are damaged by high frequencies. D. Humans have the best hearing of all animals. E. Invertebrates have better "hearing" systems than vertebrates.
Anatomy and Physiology of Special Sensory Organs
Sensory organs can be labeled as special sensory structures that permit sight, hearing, odor, and flavor. Sensory structures permitting proprioception, touch, thermal, and pain perception can be classified as more advanced sensory organs. The sensory neurons are trained to find out modifications in the external and internal conditions so that a person's body can react to that change. A stimulus is the first signal that is recognized by any sensory receptor of the body. Stimulus is an impulse generated when there is a change in the surroundings of a person. For example, a heated environment will alert the brain through the thermal sensory organs and generate a reflex accordingly.
Sensory Receptors
The human sensory system is one of the most complex and highly evolved structures, which processes a myriad of incoming messages. This well-coordinated system helps an organism or individual to respond to external stimuli, appropriately. The sensory receptors are an important part of the sensory system. These receptors are specialized epidermal cells that respond to external environmental stimuli. These receptors consist of structural and support cells that form the peripheral unit of the receptor and the neural dendrites which receive and detect the external stimuli.
![Question 14 of 190
FINAL - Science
The question is based on the following passage.
Although most animals and some plants detect and
respond to sound vibrations, the precise sensitivity that
we call hearing is rare in the living world. It is highly
developed only in birds and mammals, and the same
operational system applies in all vertebrate auditory
systems. Sound waves cause a liquid within the
organism's auditory apparatus to vibrate. These
vibrations are picked up by receptors that transmit
signals to nerve cells. These cells then communicate the
sound to the brain. Humans can hear vibrational
frequencies of 20 to 20,000 cycles per second; cats
respond to frequencies of up to 50,000 cycles per
second; and porpoises and bats pick up frequencies of
100,000 cycles per second.
Which statement does the passage support?
A. Cats and porpoises are adapted to hearing low
frequencies.
B. Some frequencies are beyond the human
hearing range.
C. Ears are damaged by high frequencies.
D. Humans have the best hearing of all animals.
E. Invertebrates have better "hearing" systems
than vertebrates.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc22a9166-79ef-4489-a230-81be74daa87f%2Fca8b39c6-6eca-4a7f-85bb-7a437c3a5f31%2Fnxkf9j_processed.jpeg&w=3840&q=75)
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