Which of the following helps explain why elderly people have trouble with thermoregulation?
A. Their skin has less collagen.
B. The epidermis becomes thinner.
C. They have fewer sweat glands.
D. They have fewer sebaceous glands.
Answer: C
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Cancer cells
A) are indistinguishable from normal body cells. B) have a slow mitotic rate. C) may exhibit metastasis. D) do not form neoplasms. E) generally form benign tumors.
What is the most distinguishing characteristic of muscle tissue?
A) the design of the fibers B) the sarcoplasmic reticulum C) the diversity of activity of muscle tissue D) the ability to transform chemical energy into mechanical energy
The hyoid bone
A) serves as a base for muscles associated with the larynx, tongue, and pharynx. B) provides a site for the attachment of muscles that rotate or extend the head. C) marks the point of articulation with the lower jaw. D) contributes to the nasal septum. E) is the attachment point for the temporalis muscle.
Cancer cells:
A) may exhibit metastasis. B) have a slower mitotic rate than normal body cells. C) are indistinguishable from normal body cells. D) do not spread into other body tissues.