A substance composed of two or more different elements participating in a chemical bond is a(n)
A) solution
B) mixture
C) compound
D) atom
Ans: C) compound
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Name the three parts of the ear: ____________________, ____________________, and ____________________.?
Fill in the blank(s) with correct word
The rectus abdominis muscle is anchored transversely by attachment to the anterior layer of the rectus sheath by which of the following structures?
(A) pubic tubercle (B) xiphoid process (C) linea alba (D) tendinous intersections (E) umbilicus
Exposure to secondhand smoke can cause or increase risk of
A) sarcoidosis, multiple sclerosis, and vasculitis B) high altitude sickness and sleep apnea. C) heart disease, lung cancer, and low birth weight. D) pneumonia and tuberculosis.
Which of the following characterizes Duchenne muscular dystrophy?
A. Muscles atrophy due to a loss of fat and scar tissue. B. There is a defective gene for the protein called duchennase. C. More females are affected than males. D. Muscles atrophy due to lack of response to acetylcholine. E. There is a defective gene for the protein called dystrophin.