Multiple Choice
In the epidermis, which layer contains mitotically active basal keratinocytes responsible for ongoing cell division and is the deepest layer of the epidermis?
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1. Overview of Cell Biology
Overview of Tissue Structures
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In an overview of tissue structures, which body structure is characterized by a wall that is only one cell thick to allow rapid diffusion of gases?
A
Urinary bladder (transitional epithelium)
B
Alveoli of the lungs (simple squamous epithelium)
C
Esophagus (stratified squamous epithelium)
D
Trachea (pseudostratified ciliated columnar epithelium)
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