Can anyone answer this? =)

Gerald L. McLaughlin, Ph.D gmclaugh at
Fri Sep 11 11:20:40 EST 1998

Briefly, I'd suggest that no existing phylum lacks parasitic
representatives; I wrote a related theoretical article in 1983.  Intimate
multi-species interactions seem to be a fundamental characteristic of life.
 Perhaps this necessity and other factors generate opportunities for
lackeys and bad apples to become successful parasites or pathogens.


At 05:12 PM 9/10/98 -0700, Marc Weber wrote:
>Dr. Pappas,
>Thanks for responding... I had one more question...
>    Of the existing phyla, are there any organisms that dont have any (
zero )
>parasitic representatives?
>Thanks in advance,
>Dr. Peter W. Pappas wrote:
>> An answer to this question depends on how you define "parasite" and "major
>> phylum."  Moreover, since taxonomists have not yet identified all the
>> animals in any phylum, it is impossible to answer this question.
>> Compaq2 wrote in message <35F71590.2D626885 at>...
>> >Hi everyone,
>> >    What major phylum has no parasitic representatives?
>> >Thanks in advance.
>> >
>> >Sami.
>> >
Gerald McLaughlin, Ph.D.
Associate Professor
Dept Pathology and Laboratory Medicine
635 Barnhill Drive, MS A128
Indianapolis, IN  46202-5120
317-274-2651; FAX 317-278-2018
E-mail:  gmclaugh at

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