The membrane is made up of irregular dense connective tissue, which is divided into two layers called the fibrous layer and the cambium layer. The cambium layer contains the progenitor cells that develop into osteoblast. The osteoblast are key in increasing the width or length of a bone.
View Test Prep - Quiz 3.docx from HUM ABCDEFG at Coastline Community College. 1. The term for a sound that has one definite frequency is x tone rhythm tempo harmony 2. When notes sounded together tend to be grating or unpleasant, the resulting sound is called harmony timbre x dissonance consonance 3. A group of notes played in succession with a perceivable shape x is called a melody produces harmony produces consonance produces dissonance 4.
This depends on the frequency of the whistle (I'm simplifying by assuming a single-tone whistle). The frequency of dog whistles is between 23 and 54 kHz [1]. This is a pretty wide range; I doubt that there is any non-trivial number of humans able to hear 54kHz, but 23kHz is within hearing range of most children. With age, as eardrums become larger and less flexible, sensitivity to higher frequencies drops off.