Designing a creature

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GreenDog
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Designing a creature

Post by GreenDog » Tue Feb 28, 2006 8:38 am

I admit this is a homework question never the less, suggestions are most welcome.
I've been told to design a creature whose sole purpose in life is to move to and from a glucose source,
it has memory and can learn but it doesn’t have a nervous system.
All it has are two nerve cells which can be any kind of cells (motor, sensor, both, etc.).

Any thoughts on the subject?
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Dr.Stein
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Re: Designing a creature

Post by Dr.Stein » Tue Feb 28, 2006 9:08 am

GreenDog wrote:I admit this is a homework question never the less, suggestions are most welcome.
I've been told to design a creature whose sole purpose in life is to move to and from a glucose source,
it has memory and can learn but it doesn’t have a nervous system.
All it has are two nerve cells which can be any kind of cells (motor, sensor, both, etc.).

Any thoughts on the subject?

I think it is spermatozoon, it fulfills the criteria of "moving" and "living from glucose" but it seems that the rest statement are not suitable :D
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GreenDog
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Post by GreenDog » Tue Feb 28, 2006 9:26 am

The thing does not exist in real life! I'm suppose to invent it. But I don't really know which functions to give thouse two neurons so they could do all this.
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Post by Khaiy » Tue Feb 28, 2006 11:54 am

I suppose you could just give it whatever neurons you wanted, as long as you could explain why the traits might be useful in its pursuit of glucose.

In my opinion motor neurons should be present so that it can actively move towards glucose sources, and sensory neurons of some sort so it could seek them out.

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Post by Dr.Stein » Wed Mar 01, 2006 2:41 am

Aah ok, I am out of this game :P
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MrMistery
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Post by MrMistery » Wed Mar 01, 2006 6:53 pm

Hmm... well, then i think you should give one sensory and one motor neuron. Since that is the simplest reflex i know...
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Post by Darby » Sun Mar 05, 2006 12:46 pm

It's a fairly silly exercise (it's supposed to be simple, but this simple is not terribly useful), but ultimately you need a sensorimotor neuron to sense and respond, and an interneuron to decide whether glucose is present and to decide which response to initiate.

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Post by MrMistery » Sun Mar 05, 2006 6:50 pm

what the heck is a sensorimotor neuron? there is no such thing...
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Post by Darby » Sun Mar 05, 2006 7:07 pm

They're part of Cnidarian nerve nets and found in a few other low-end animal groups. Impulses travel both ways on the same neurons - you can see why it's not a common set-up.

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Post by Zeneth Entorion » Sat Apr 29, 2006 4:49 pm

MrMistery wrote:what the heck is a sensorimotor neuron? there is no such thing...


Input comes from environment, output goes to movement. Don't see why there couldn't be such a thing..

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Post by ptPablo » Sat May 06, 2006 10:32 pm

don't limit yourself to sensory, motor, sensorimotor and inter neurons. if you're allowed to "make it up" then MAKE IT UP!

e.g. a glucotactic neuron: when stimulated with glucose on one end, it releases NT at the other that stimulates a jet-propulsive fart in the direction of the glucose and another that stimulates the epithelium via cyclic-THC to activate hexose carriers to suck in the sugar. go wild! employ all the wacked-out intelligent design you can think of.

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Post by rach » Fri May 12, 2006 9:03 am

i think tht is a cool homework question.
i wish i got homework that was fun...

but i think it could be RACHIELDER SMOSIS

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