REALLY URGENT REASEARCH Helice crassa!!!

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karole
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REALLY URGENT REASEARCH Helice crassa!!!

Post by karole » Mon Mar 24, 2008 4:06 am

Hi, I'm Karole, and I want to know what you mean by helice crassa is 'different from other arthropods because of the chitina'.

What is chitina? Do you mean chitin? And even so, don't all arthropods have it?

Also, is having chitin all over the body mean that the mud crabs have exoskeleton all over their body?

Is it a physiological adaptation? I'm looking for any physiological adaptations of helice crassa that reduces desiccation. By the way, I'm doing this research assignment for water content of the mud that helice crassa lives in. Thanks!!

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MrMistery
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Post by MrMistery » Wed Mar 26, 2008 8:05 am

the exoskeleton of each insect is different. Though the major composition is always chitin(poly-N-acetylglucosamine) there are usually a large number of proteins and salts present. The exact composition of the exoskeleton reflects the arthropod's adaptations to its environment.
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

karole
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Re: REALLY URGENT REASEARCH Helice crassa!!!

Post by karole » Thu Mar 27, 2008 1:32 am

Thanks. But what I really need is a physiolocal adaptation of helice crassa

I've search through the internet, lots books, textbooks and so on to find it, but I just can't! :cry:

I'm desperate for any, ANY! physiolocal adaptations. PLEASE :cry: :cry:

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