It is called the Pinna, or the Auricle.
The visible portion of the ear is shaped in such a way that it best amplifies sound. A pig's ear is large and concave so that it can trap sound waves and amplify them inside the pig's ear for optimum hearing.
The three sections are the outer ear, middle ear, and inner ear. There are links below to the images of the ear's anatomy.
The pinna or auricle is the visible cartilage part of the ear.
outer ear
The exterior cartilaginous portion of the outer ear is called the pinna or auricle. It helps collect sound waves and direct them into the ear canal for processing by the ear drum and inner ear structures.
No, typically the underwater portion of an iceberg is not bigger than the portion that is visible above water. Icebergs are known to have a larger portion underwater, but this is due to the difference in density between ice and seawater rather than the underwater portion being larger in size.
Visible light is in the portion of the electromagnetic spectrum between infrared (IR) and ultraviolet (UV) light.
The visible light spectrum (wavelengths from 380 to 700 nanometers)
hair shaft
The (not surprising) name is "visible light."
As a dilated portion of a canal or duct, it is the semicircular canal of the ear
Yes, the visible portion of the electromagnetic spectrum consists of wavelengths between approximately 400 to 700 nanometers. This range is a small portion of the entire electromagnetic spectrum, which includes radio waves, microwaves, infrared, ultraviolet, X-rays, and gamma rays.