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    Campbell Biology Concepts and Connections Study Set 2
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    Exam 7: Photosynthesis: Using Light to Make Food
  5. Question
    The Ultimate Source of All the Food We Eat and the Oxygen
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The Ultimate Source of All the Food We Eat and the Oxygen

Question 30

Question 30

Multiple Choice

The ultimate source of all the food we eat and the oxygen we breathe is


A) glycolysis.
B) photosynthesis.
C) cellular respiration.
D) anaerobic metabolism.

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