what is the advantage of a humans protruding ear?
494693
The irregular protrusion of the ear adds directional distortion to the sound that the brain has learned (during infancy) to decode into a direction inkling. When you hear a sound distinctly coming from a certain direction, its because the shape of your ear helped. If you were to drastically change the shape of your ear, your acoustic directionality would be impaired.
24026
Why focus on your ears? Every part of your body grows
307668
you dont need a point of contact for this type. Obvious advantage: You dont need to put your hand in a dangerous environment(industrial), or near someone who's sick(home). Also, if an area is secluded, you can shoot from a good 10 feet away and get accurate measurements. And probably the biggest advantage: IT'S FAST!!
910457
Advantages:  Travel, new places every day, meet lots of people, \n\nDisadvantages:  Lots of travel, new place every day, meet lots of obnoxious people, low pay
963225
Not sure, but it's actually pretty negligible. Even when you're firing the main gun while "buttoned up", your ears don't even pop.
1169977
Yes.  There will be a smooth, round scale where you would think to look for an ear...that is their ear.
80708
The advantage is it's free.\n\nThe disadvantage is that is very unsophisticated and gives you very little control as what to allow in or out.\n\nZone Alarm is a much better choice.
159412
The question may be, "Why is your right ear slightly higher than your left ear?" \nAnyway, loved your answer about finding lost loves. You are right.
124344
advantage-  Cheaper and smaller\nDisadvantage- poorer resolution
363423
I think so-I have seen sunglasses that have 'legs' shaped to sit over the top of the head as opposed to round the side and they are custom made to stop them sliding around.  Alternatively a person without ears could wear contacts but I dont know many people who dont have ears, and ones who didnt would probably get prosthetic ears made!
49965
The ear canal is shaped somewhat like an hourglass. The skin on the outer part of the canal has special glands that produce earwax. The purpose of this natural wax is to repel water and to trap dust and sand particles. Usually a small amount of wax accumulates, and then dries up and falls out of the ear canal caring with it unwanted particles. Ear wax is helpful in normal amounts and serves to coat the skin of the ear canal where it acts as a temporary water repellent. The absence of ear wax may result in dry, itchy ears, and even infection.\n\nMost of the time the ear canals are self-cleaning, that is, there is a slow and orderly migration of ear canal skin from the eardrum to the outer opening. Old earwax is constantly being transported from the deeper areas of the ear canal to the opening where it usually dries, flakes, and falls out.\n\nJust to Help, please, do not use Q-tips, I mean Never put anything smaller than your elbow in your ear! Wax is not formed in the deep part of the ear canal near the eardrum, but only in the outer part of the canal. So when a patient has wax pushed up against the eardrum, it is often because he has been probing his ear with such things as Q-Tips.
911107
To protect the inner ear from invading particles and moisture protection keeping the eardrum (much like the contact lens solution) from drying out and causing discomfort......\n\nYour sister,\nGinger
213626
I have been wearing hearing aids all my life (since I was three). It's definitely been an unparalled experience for me. However, hearing aids are not about being "cool". People don't wear them for cosmetic purposes, although they are becoming more and more looked upon as a fashion/medical device. For people who wear them, they are offered with the choice to customize the color, etc. I wear a very small hearing aid that I just obtained, it's currently the best on the market. It's the Resound Metrix ITC. It is flush with my ear, and colored like my skin, making it very discreet. Anyway, hearing aids have come a loooong way since their first inception into the market. Mine, for instance is software-based. It has the ability to do many complex computations on the fly, and the result ends up being virtually the same hearing of someone who has normal hearing. The hearing-impaired vary in their ability to hear sounds. I cannot hear the high pitched frequencies all too well, but bass is very easily detected. \n\nIn short, hearing aids are a modern solution for people with a moderate to severe hearing loss. There are many different hearing aids and sizes to fit the different patients, but they all serve one purpose: To amplify the noise around a patient so that they may hear it. The more expensive hearing aids dont just amplify, they ANALYZE. This is what set the best from the crud ones you see in the backs of magazines for 300 bucks. These hearing aids give the wearer the ability to hear a wide freqency of sounds, and speech extremely intellible.
831562
There is no evidence that any of the described traits are favorable.  Larger eyes are might or might not be of any benefit.  Although more area might improve reading, we have not needed more light gathering since Edison invented the light bulb.  The shape of the nose is subject to multiple pressures.  If we all eat processed foods, sharp teeth lose their advantage.  If we eat more steak, no.  Our front teeth will remain flat as it is essential for speech.  Our lips cannot lose much or they alter our speech patterns.  Our pinkies, so long as we use keyboards are unlikely to recede, and as our interactions with technology increase, might increase in functionality.  Larger brains may be possible, but it may be limited by birthing.\n\nI think you received a bigger dose of Science Fiction than Science.  Challenge your teacher to demonstrate the selective pressures that would produce the changes he suggested.
288774
mouth gaurds ??..Ear guards ??
367492
if you have dentures or really long earlobes then yes
75223
Many people find the hard plastic uncomfortable after prolonged use,the foam is used to cushion the ear to allow for longer periods of listening.  Some newer headphones only have rubber parts inserted in the ear as another method of this.\nhttp://www.shurestore.com/index.html?banner=uhp_inblack