White blood cells..Mammals only?
gwmartin at scws30.harvard.edu
Mon Dec 4 15:11:23 EST 1995
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
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.
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