Question 9 • Summer School LA-Biology CR
Cardiac and skeletal muscles are striated, so A is true. Heart muscle and the smooth muscle in digestive organs work involuntarily, making D true. Skeletal muscles move the body, while smooth muscles move substances through organs, so E is true. Cardiac muscle contracts to pump blood, making F true; B and C are false because skeletal muscle is striated and smooth and cardiac muscles are involuntary.
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