I think its called the <span>doldrums. I had a friend who lived in Africa on the equator and i remember her mentioning this (this was also in 2007, so dont quote me here lol)
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People with O+ blood cannot donate their blood to negative blood types, while people with O- blood can donate to any blood type. This makes them the "universal donor." However, they can only receive O- blood.
<span>microorginisms tinggal di usus memecah makromolekul / membantu pencernaan</span>
