I don't even know the answer sorry
The light-independent reactions occur in the storm of the chloroplast<span>. The light- independent reactions are "independent" from light so they can happen else where. The light-dependent reactions happen in the thylakoid membrane of the chloroplast where the light is absorbed, and the reactions depend on the light.</span>
The answer to your question is <span>chemical energy
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Two individual flatworms must transfer sperm to each other