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Home Q & A Board Biology-Related Homework Help General Biology
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lalalala1 lalalala1
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6 years ago
Cardiac muscle fibers differ from skeletal muscle fibers in that only the
 
  a. cardiac fibers can contract without neural stimulation.
  b. skeletal fibers are striated.
  c. cardiac fibers contain glycogen.
  d. skeletal fibers are connected electrically.
  e. cardiac fibers are arranged in motor units.

Question 2

Muscles exert force by
 
  a. expanding in one direction.
  b. expanding in either of two directions.
  c. pushing in one direction only.
  d. pulling in one direction only.
  e. pushing or pulling.
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helenliuhelenliu
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6 years ago
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lalalala1 Author
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#2
6 years ago
These are correct! Thank you very much!!!
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