Specialized columnar cells that secrete mucus onto the surfaces of the tissue are called
A. endocrine cells.
B. goblet cells.
C. adipose cells.
D. surface cells.
Answer: B
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Identify the characteristics of action potentials. Select all that apply.
-the strength of the stimulus determines the magnitude of the action potential -multiple stimuli can create larger action potentials, and fewer stimuli can create small action potentials. -they are all-or-none -the strength of the stimulus determines the frequency of the action potentials -they are propagated in a non-decremental fashion -they are all or none -the strength of the stimulus determines the frequency of the action potentials. -they are propagated in a non-decremental fashion
Choose which tissue would line the uterine (fallopian) tubes and function as a "conveyer belt" to help move a fertilized egg towards the uterus
A) ciliated simple columnar epithelium B) smooth muscle C) simple cuboidal epithelium D) stratified squamous epithelium
Which of the following is a passageway for both air and food?
A. trachea B. larynx C. pharynx D. bronchus E. esophagus
After eating, the hormone ________ signals the hypothalamus to suppress appetite.
A. leptin B. ghrelin C. pepsin D. neuropeptide Y