Decades: 290s BC 280s BC 270s BC 260s BC 250s BC - 240s BC - 230s BC 220s BC 210s BC 200s BC 190s BC
Years: 251 BC 250 BC 249 BC 248 BC 247 BC - 246 BC - 245 BC 244 BC 243 BC 242 BC 241 BC
... refers to a biological process whereby cells absorb material outside their cell membranes. Endocytosis is the opposite of exocytosis, and always involves the ...
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