"WHAT DRIVES LIFE IS . . . A LITTLE CURRENT, KEPT UP BY THE SUNSHINE."

 

ALBERT SZENT-GYORGYI

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COMMUNITY STRUCTURE


I. SUNLIGHT: ENERGY FOR LIFE

PHOTOSYNTHESIS
RESPIRATION
ENTROPY


II. FOOD CHAINS AND ENTROPY

 

III. BIOGEOCHEMICAL CYCLES

CARBON
OXYGEN
NITROGEN
PHOSPHORUS
SULFUR

IV. SUCCESSION

V. BIOMES

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