AnswersPA Human Anatomy Physiology A 2026-2027 SMITH ICElements of Living OrganismsQuestion 4
4
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Elements of Living Organisms

Question 4 • PA Human Anatomy & Physiology A 2026-2027 SMITH IC

Carbon-containing energy sources formed from the decomposition of prehistoric organisms are called .

Answer
A
carbon dioxide
B
fossil fuels
C
cellular respiration
D
photosynthesis
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