You use your computer for several hours every day. Why is it important to have the proper hand rest and an adjustable workstation and to take frequent breaks from typing?
What will be an ideal response?
Repetitive motion in the hand or wrist, such as using a computer keyboard and mouse, can cause tendons in your hands to become inflamed and press against the nerve, resulting in numbness or tingling in the hand and pain that may affect the wrist, hand, and fingers. This condition, known as carpal tunnel syndrome, is increasingly common as people spend more time operating computer keyboards and playing video games.
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Which of the following are purines?
A) adenine and guanine B) adenine and thymine C) guanine and uracil D) guanine and cytosine
Which gland is associated with biological clocks or biorhythms?
a. pineal b. parathyroid c. hypothalamus d. pituitary e. thymus
Which phylum of vascular, seed-bearing plants includes pines, spruces, and firs?
a. Gnetophyta b. Cycadophyta c. Ginkgophyta d. Coniferophyta
Keratin filaments are anchored to junctions called
a. adherens junctions. b. tight junctions. c. desmosomes. d. gap junctions. e. neuromuscular junctions.