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Basic structure of a peroxisome Distribution of peroxisomes (white) in HEK 293 cells during mitosis Peroxisome in rat neonatal cardiomyocyte. A peroxisome (/ p ə ˈ r ɒ k s ɪ ˌ s oʊ m /) [1] is a membrane-bound organelle, a type of microbody, found in the cytoplasm of virtually all eukaryotic cells. [2] [3] Peroxisomes are oxidative ...
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Ancient history covers all continents inhabited by humans in the period 3000 BC – AD 500, ending with the expansion of Islam in late antiquity. [1] The three-age system periodises ancient history into the Stone Age, the Bronze Age, and the Iron Age, with recorded history generally considered to begin with the Bronze Age. The start and end of ...
The known world of Ancient Egypt saw the Nile as the center, and the world as based upon "the" river. Various oasis were known to the east and west, and were considered locations of various gods (e.g. Siwa , for Amon).
In 2012, the head of AP Grading, Trevor Packer, stated that the reason for the low percentages of 5s is that "AP World History is a college-level course, & many sophomores aren't yet writing at that level." 10.44 percent of all seniors who took the exam in 2012 received a 5, while just 6.62 percent of sophomores received a 5.
By definition, [2] there are no written records from human prehistory, which can only be known from material archaeological and anthropological evidence: prehistoric materials and human remains. These were at first understood by the collection of folklore and by analogy with pre-literate societies observed in modern times.
The following outline is provided as an overview of and topical guide to ancient history: Ancient history – study of recorded human history from the beginning of writing at about 3000 BC until the Early Middle Ages. The times before writing belong either to protohistory or to prehistory.
However, early forms of world history were not truly global and were limited to only the regions known by the historian. In Ancient China, Chinese world history, that of China and the surrounding people of East Asia was based on the dynastic cycle articulated by Sima Qian c. 100 BC. Sima Qian's model is based on the Mandate of Heaven.