Examlex
_________ are Web sites designed specifically to help users obtain information on the Web.
A)Social networking sites
B)E-commerce sites
C)Search sites
D)Auction sites
Meiosis
A process of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct.
Endosymbiotic Theory
A theory suggesting that some organelles, such as mitochondria and chloroplasts, were originally free-living bacteria that were taken inside another cell.
Organelles
Organelles are specialized structures within a cell that perform distinct functions, such as the mitochondria for energy production and the nucleus for genetic information storage.
Prokaryotic Cells
Cells without a distinct nucleus or other membrane-bound organelles, including the bacteria and archaea.
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