Red blood cells or erythrocytes
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Answer:
The answer is B: It is a tube lined with a mucous membrane.
Explanation:
The pharynx is a smooth tube approximately 12 cm long, which begins at the level of the neck and ends at the epiglottis, is related to both breathing and oral use; it is lined with a mucous menbrana; emits intelligible sounds, being the biggest resonator.
Answer:
Squamous epithelia.
Explanation:
The cells of the squamous epithelial are wider than their height. These cells are found in the lining of esophagus, mouth and alveoli of the lungs.
These cells helps to pass the material by the process of diffusion. These are the thinnest tissue and also plays an important role of filtration.
Thus, the correct answer is option (A).
It would most likely be located in the base of the skull and the lower portion of the spine.
