In a(n) ________________________________________ coat, darker colors are found on the tips of each guard hair
Fill in the blank(s) with correct word
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The five functional types of epithelia are listed below. Match each type with its location and/or description.
1. Found in the epidermis, esophagus, and mouth, these stacked layers of cells prevent exchange, while they resist chemicals, bacteria, and other destructive forces. 2. This tissue actively and selectively regulates the exchange of nongaseous material, such as ions and nutrients, and can be regulated in response to various stimuli. 3. These thin, flattened cells allow the rapid passage of O2 and CO2 through the cells of the lungs and of certain blood vessels. 4. These cells produce a substance and release it, either onto a surface or directly into the blood. 5. This tissue is composed of cells with membrane extensions that beat in a coordinated fashion to move fluid and particles across the tissue. A. exchange B. transport C. ciliated D. protective E. secretory
__________ are thin hairs inside the nostrils that filter the air to remove debris
Fill in the blank(s) with correct word
Deflection of the basilar membrane
a. activates receptors of the scala tympani b. occurs in response to fluid movements in the utricle c. results from vibrations in the round window d. results from vibrations in perilymph around the scala media e. causes otoliths to move back and forth
What changes in the blood levels of respiratory gases result from hyperventilation?
A. Oxygen and carbon dioxide levels fall. B. Oxygen levels do not change but carbon dioxide levels fall. C. Oxygen levels rise and carbon dioxide levels fall. D. Oxygen and carbon dioxide levels rise.