D)<span>Water droplets forming a bead-like shape over a glass table</span>
This volume of air is called the residual volume.
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Answer:
Because there is barely any sunlight (warmt)
Answer: 2A Sensorineural deafness
2B Sensory adaptation
2C Central deafness
2D Conductive deafness
Explanation: The human ear is divided into 3 parts:
- <u>Outer</u> <u>Ear</u>: auricle, ear canal and tympanic membrane;
- <u>Middle</u> <u>Ear</u>: eardrum, tympanic cavity and ossicles (malleus, incus and stapes);
- <u>Inner</u> <u>Ear</u>: oval window, semicircular ducts (attached to cochlea and nerves), cochlea and auditory tube;
The <u>Sensorineural</u> <u>deafness</u> is a type of deafness caused by a damage in the inner ear, either the cochlea or the auditory nerve. It can happen because of medicine toxicity, exposure to noise along the years etc.
So, from the scenarios above, 2A is consistent with sensorineural deafness since stereocilia are hair cells of inner ear.
<u>Sensory</u> <u>adaptation</u> is a phenomenom that happens when an individual's sensory receptors is exposed to a stimuli for a prolonged period of time. For example, the situation described in 2B. It is not considered deafness because it is not caused by a damage in any part of the ear.
<u>Central</u> <u>deafness</u> is a very rare case of deafness. The damage in this type of deafness is in the brain and not in any of the 3 parts of the ear. That's why the scenario in 2C is the example of this.
<u>Conductive</u> <u>deafness</u> is the second most common type of ear problem and it occurs in the outer ear. One of the causes is blockage in the ear canal by the ear wax, external bodies, osteomas (bone growth) or otitis (oute ear infection). An example of this type of deafness is scenario 2D.
