"Evidence of Archean life: Stromatolites and microfossils" | Left tube: after standing, the RBCs have settled at the bottom of the tube |
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29 361 1470 : 869—885 | In Wikipedia, The Free Encyclopedia |
Alberts, Bruce; Johnson, Alexander; Lewis, Julian; Raff, Martin; Roberts, Keith; Walter, Peter 2002 | Right tube: contains freshly drawn blood |
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Raven, Peter Hamilton; Johnson, George Brooks 2002 | Philos Trans R Soc Lond B Biol Sci |