Arrange the following in proper sequence: (1) digestion (2) elimination (3) ingestion (4) absorption
A. 3, 4, 2, 1
B. 1, 4, 3, 2
C. 4, 1, 2, 3
D. 3, 4, 1, 2
E. 3, 1, 4, 2
E
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Which of the following features is NOT characteristic of muscle tissues?
A) elasticity B) extensibility C) transmissive D) excitability E) contractility
______________ are joined to each other by structures called intercalated disks.
A) Skeletal muscle cells B) Cardiac muscle cells C) Smooth muscle cells D) Both skeletal and cardiac muscle cells E) Both cardiac and smooth muscle cells
Which germ layer is the thymus derived from?
A. Endoderm B. Mesoderm C. Ectoderm
What constitutes the upper airways?
A. the air passages prior to the trachea B. the air passages prior to the lungs C. the air passages from the nose and mouth through the conducting zone D. the air passages of the head and neck