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B. Circulatory Syst 20. What is the flap of tissue found at the end of the pharynx that closes over larynx to prevent the food and water from entering to the trachea? A. Cilia B. Epiglottis C. Tonsils D. Voice Box 21. Which of the following is not a function of the circulatory system? A. Prepares food for digestion B. Supplies nutrients to all body cells C. Collects wastes from all body cells D. Supplies oxygen to all body cells do not get mixed un inside the heart?​

Sagot :

Answer:

B.Epiglottis

Explanation:

flap of cartilage located in the throat behind the tongue and in front of the larynx. The epiglottis is usually upright at rest allowing air to pass into the larynx and lungs.

ANIMEEDITOR3990IN

Answer:

20.Epiglottis: a flap of tissue that prevents food from going into or blocking the respiratory system.

21. D

Explanation:

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