cellular respiration
heat
photosynthesis
the Calvin cycle
sunlight
2007-07-02 17:52:27 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Botany
Sunlight
2007-07-02 17:57:43 · answer #1 · answered by smartnini 2 · 0⤊ 1⤋
Sunlight.
Sunlight provides the energy that is needed to fuel the chemical reactions in photosynthesis. Cellular respiration is what happens when energy is used, and cellular respiration can give off heat. The Calvin cycle is one step in photosynthesis.
2007-07-03 04:14:50 · answer #2 · answered by Erika M 4 · 0⤊ 0⤋
Sunlight... the rest are methods of processing, except Heat which is a by-product.
2007-07-02 18:00:17 · answer #3 · answered by Tammy Z 3 · 0⤊ 1⤋
Calvin cycle
2007-07-02 17:56:33 · answer #4 · answered by leaf 4 · 0⤊ 1⤋
sunlight (from the Sun)
2007-07-02 18:20:12 · answer #5 · answered by BP 7 · 0⤊ 1⤋
photosynthesis
2007-07-03 14:54:30 · answer #6 · answered by glenn t 7 · 0⤊ 0⤋
sunlight-without it, nothing (much) else would be possible!
2007-07-02 18:00:45 · answer #7 · answered by mom is a freak 3 · 0⤊ 1⤋