White blood cells..Mammals only?
dodell at s850.mwc.edu
Mon Dec 11 10:28:32 EST 1995
glover martin (gwmartin at scws30.harvard.edu) wrote:
> robertson jason vict (jroberts at ehsn12.cen.uiuc.edu) wrote:
> : Are white blood cells present in mammals only? I came across a reference that
> No. I know that at least birds have white cells also.
> : implied that they were. If so, what do non-mammals use to defend against
> : microorganisms?
> I think that almost all metazoans (somebody stop me if I'm wrong) have at
> least rudimentary phagocytic white cells. And I think that in insects
> these cells may also act as carriers of gas transport molecules.
Most vertebrates starting at the telost fish have some sort of
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