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Economic profit is equal to the difference between:
Vocal Cords
Paired bands of muscle tissue located in the larynx (voice box) that vibrate to produce sound when air is expelled from the lungs.
Epiglottis
A leaf-shaped flap in the throat that prevents food and drink from entering the windpipe during swallowing.
Tension
A physical or psychological state of being stretched tight which can refer to the force applied to something or a feeling of strain and anxiety.
Trachea
A cylindrical tube within the respiratory system that provides air flow to and from the lungs for respiration.
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