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840s BC

Centuries: 10th century BC - 9th century BC - 8th century BC

Decades: 890s BC 880s BC 870s BC 860s BC 850s BC - 840s BC - 830s BC 820s BC 810s BC 800s BC 790s BC


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Photosynthesis

... electrons is made up for by taking electrons from a molecule of water, splitting it into O2 and H+. The electrons transfer from the primary acceptor to plastoquinone, then ...

 
 
 
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