All of the following are properties of cardiac muscle cells except
A) intercalated discs
B) involuntary
C) branching fibers
D) shorter in duration of contraction than skeletal muscles.
Answer: D) shorter in duration of contraction than skeletal muscles.
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The structures that produce sound when air flows through them are the __________ __________.
Fill in the blank(s) with the appropriate word(s).
Which of the following properties of the cytoskeleton is false
A) supports organelles
B) controls cell shape
C) provides cell strength
D) connects cells to each other
E) moves organelles
Which tumor originates in connective tissue?
A. Carcinoma B. Lymphoma C. Sarcoma D. Leukemia
Which of the following is not accomplished by interferon?
a. It directly breaks down viral messenger RNA and inhibits protein synthesis. b. It enhances macrophage phagocytic activity. c. It stimulates antibody production. d. It stimulates the activity of natural killer cells. e. It slows cell division and suppresses tumor growth.