2007-08-03 19:42:36 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
In 1977, Carl Woese proposed dividing prokaryotes into the Bacteria and Archaea (originally Eubacteria and Archaebacteria) because of the significant genetic differences between the two. This arrangement of Eukaryota (also called "Eukarya"), Bacteria, and Archaea is called the three-domain system replacing the traditional two-empire system.
2007-08-03 20:12:35 · answer #1 · answered by Aseel 4 · 0⤊ 0⤋
prokaryotes lack a nucleus, which was discovered in 1802 by bauer. i would guess soon after that someone noticed that certain cells don't have nuclei, but i'm not sure who that was.
2007-08-04 03:45:24 · answer #2 · answered by vorenhutz 7 · 0⤊ 0⤋
It has to be Anton Van Leuwenhoek. He was the first person to see a cell like a microorganism and created the first microscope in the 17th century.
2007-08-04 05:17:06 · answer #3 · answered by Emad 2 · 3⤊ 0⤋
Possible, Leeuwenhoek, when with his improved microscope he discovered single cell " animalcules " ( those may have been eukaryote, though )
2007-08-04 03:15:47 · answer #4 · answered by Anonymous · 0⤊ 0⤋