definition.scale

derek a. zelmer zelmeda4 at WFU.EDU
Mon Feb 20 12:45:28 EST 1995


On Fri, 17 Feb 1995, Brian E. Keas wrote:

> What I was trying to do in my definition of a parasite was have a 
> definition that clearly and without exception included organisms that 
> almost all people would agree to be parasites.  Clearly, cows don't fit 
> most people's definition of a parasite and thus my definition was made to 
> exclude cows and other 'classic' herbivores.  It is somewhat a matter of 
> scale, but it would be very difficult to imagine an adult tapeworm, for 
> example, infecting two (hosts) intestines simultaneously, regardless of 
> its size.

What about two tapeworms that are genetically identical? Asexual 
reproduction may provide a way for "scaled down" consumers to feed on two 
hosts simultaneously.

		Derek "Devil's Advocate" Zelmer



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