MadSci Network: General Biology
Query:

Re: How many cells make up the smallest mite?

Date: Sun May 11 20:41:57 2008
Posted By: Dave Williams, Dean of Science
Area of science: General Biology
ID: 1208056930.Gb
Message:

To start with, you seem to have a major misconception. Even the smallest
mite is much, much larger than a typical human body cell. Here is a link
that will help:
 http://www.cellsalive.com/howbig.htm

As to how many cells make up the smallest mite, I'm not at all sure nor am
I able, in the short run, to find out what the smallest mite is. I'm not
sure even a mite expert would know. Mites of a given kind do vary in size,
I have found.

What you may be thinking about is rotifers, whose bodies, I was taught many
years ago, consist of a fixed number of cells that was in the 20 to 30 range.
My research on your questions has cured me of that myth. I discovered that
rotifers are thought to have a fix number of body cells but that it is on
the order of 1000. Here is a reliable link:
 http://en.wikipedia.org/wiki/Rotifer

This fact is more amazing given that most rotifers are not much, if at all,
larger than some large, unicellular organisms like amoebas and ciliates
like Paramecium.

I found one rotifer source that went as far as to itemize the cell number
of rotifer organs.
 http://www.micrograp
hia.com/specbiol/rotife/homebdel/bdel0100.htm

Given that such a tiny animal as a rotifer has 1000 cells, I'd expect the
smallest mite to have many more.

Sorry I was not able to give you a definite answer. I hope that you have
learned some things and that this has helped.




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