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Explanation:
A) a communicable disease is a disease that can spread from person to person.
A non communicable disease is a disease that's cannot spread from person to person.
Pathogens can enter the body through the air. Air particles can contain particles of human sneezing and spread to other people.
Air enters the nasal cavity of the respiratory system through the nostril . The nasal cavityis divided by the midline nasal septum Thenasal cavity mucosa has several functions. Its major functions are to warm, moist and clean the incoming air.
The nasal cavity and the mouth meet at the pharynx, or throat, at the back of the nose and mouth. From there, air quickly enters the second part of your respiratory system, the trachea or windpipe. The trachea is a tube that delivers air to the lungs, the third and most important part of your respiratory system.
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Our auditory nerve then carries these signals to the brain. Also available: Journey of Sound to the Brain, an animated video. Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum.
Explanation:
Answer: Toddlers have pot bellies because they have underdeveloped stomach muscles, so losing the pot belly would be because of muscle development.
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