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Home Q & A Board Biology-Related Homework Help General Biology
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bgarlipp bgarlipp
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6 years ago
When the hearts pacemaker malfunctions, ___ can result.
 
  a. atherosclerosis
  b. sudden cardiac arrest
  c. congenital heart defects
  d. coronary heart diseases
  e. hypertrophic cardiac defects

Question 2

Resistance activities increase muscle mass by ____.
 
  a. stretching muscles
  b. increasing the number of mitochondria in cells
  c. encouraging the synthesis of more actin and myosin filaments
  d. encouraging the production of more muscle fibers
  e. converting red fibers to white fibers
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romanknromankn
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6 years ago
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bgarlipp Author
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6 years ago
Good timing, thanks!
jmelchor77
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Yesterday
Correct Slight Smile TY
africa143
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2 hours ago
Thanks
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