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.
As you may already know, the SI unit for frequency is Hertz (Hz); an event that repeats once per second has a frequency of 1 Hz. According to most sources, the human hearing (frequency) range is between 20 Hz and 20,000 Hz (bats can hear up to 100,000 Hz!). What does that mean? Sound is a mechanical wave that propagates through a medium (air, water), and the frequency of a sound wave determines its tone and pitch.