What is the function of cartilage in the gas exchange system

Rings of cartilage in the walls of the trachea help to keep it open as air is drawn in. The bronchi split into smaller branches and then into smaller tubes called bronchioles . Each bronchiole ends in a cluster of microscopic air sacs called alveoli .

the way that the mass of carbon can be conserved through cellular respiration is through a process/law called the law of conservation of mass which even tho it undergoes a process, mass is not be destroyed or changed

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.