The Cell Theory states that: 1) All organisms are made up of one or more cells and the products of those cells. 2) All cells carry out life activities (require energy, grow, have a limited size). 3) New cells arise only from other living cells by the process of cell division.tructure-a bilipid membraneous layer composed of proteins and carbohydrates. It is fluid like. Function-the cell membrane separates the cell from its external environment, and is selectively permeable (controls what gets in and out).
The anatomy and structure of the five sense organs of the human body: vision, hearing, smell, taste, and touch.
Structures of the Ear. Special senses Function The two functions of the ear are to hear and to provide the sense of balance. The ear is made up of three parts: the external ear, the middle ear, and the inner ear, also called the labyrinth (Figure 13-1). We hear because sound waves vibrate through the ear where they are transformed into nerve impulses that are then carried to the brain. (Brooks 580) Brooks, Myrna LaFleur.