The structure that collects sound and funnels it into the auditory canal is called the pinna.
The ear is an exposed and sensitive organ in the human body. It is concerned with collecting, transmitting, and producing sounds. It also helps to maintain balance in the body. It has three main parts: the external ear, the middle ear, and the internal ear. Pinna is a part of the external ear.
Pinna is also called auricle. It is composed of cartilage folds that are covered by skin. The only part of the audible which is not covered by cartilage is the lobule. The curvature formed by cartilage is known as a helix. Another part of the pinna includes the meatus which is responsible for directing sounds collected by the helix.
Pinna acts as a link that transfers sound signals from the air to the auditory canal inside the ear. The tympanic membrane carries the sounds in an S-shaped path towards the middle ear (auditory canal).
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Answer:
If you are referring to digestion...
Well your body cannot take in food as is because your body cannot absorb it. What digestion does is it actually picks out what the body can take in and gets rid of everything else that cannot pass through the mucosa (lining of the digestive tract).
Aside from this, your body actually uses food as a source of nutrients that are needed for your different cells to function. So the digestive system transforms it into a form that the cells of your body can use to perform their function. Many of these nutrients are used for not only maintaining the organs but for repair and replacement too.
There are different types of biases in a survey sampling. This includes: under coverage, nonresponse bias, response bias, voluntary response bias, etc.
A.- 2.
B. - 3.
C. - 1.
A. Under-coverage - 2. Few chosen representatives are not good sample for that project. Thus, not a representative sample.
B. Response bias - When there is expectation of a selected answer. Thus, expecting a certain answer.
C. Question-wording bias - 1. The wordings in an answer is false or inappropriately put together. Thus, Answer given do not reflect true views
