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Ectotherms and whatnot's

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Ectotherms and whatnot's

Postby dr. dugmore » Tue May 22, 2007 11:35 pm

can somone give me an to example describe how ectotherms can maintain their temperature for limited periods of time, i cannot think of any examples, and just dont get it.


also what is the name of the temperature control centre in endotherms and the type of detectors found there.


if anyone has the answers plz post below or pm me.



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Postby dr. dugmore » Fri May 25, 2007 11:56 pm

plz can sombody help?
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Postby david23 » Sat May 26, 2007 10:07 am

they are the ones that get energy from outside sources right?
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Postby geonyzl » Sun May 27, 2007 4:42 am

An ectotherm is an animal in which the internal body temperature is the same as the temperature of its surroundings. Fish, amphibians, and reptiles are ectotherms. Ectotherms can not control their internal body temperature and therefore have to stay in either the sun to stay warm, or the shade to keep cool.

http://vilenski.org/science/safari/clas ... oecto.html
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Postby dr. dugmore » Sun May 27, 2007 7:34 am

yes but how do ectotherms maintain their tempreture
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Postby Darby » Sun May 27, 2007 4:18 pm

There are several ways.

Most of them involve behavioral responses - moving to warmer / cooler areas, or settling in stable places, like burrows.

Many ectotherms can generate heat metabolically, often through muscle activity.

On top of that, many ectotherms have more than one efficient temperature range that they can be active in.
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Postby kotoreru » Sun May 27, 2007 7:51 pm

Alternatively, consider ancient Mammal-like reptiles - Dimetrodon and many Edaphasaurids had sails on their backs formed from elongated neural arches.

Do any extant species have this adaptation?
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Postby WolverSyr » Thu May 31, 2007 7:28 pm

I've read that sauropods might have maintained some level of body temp because of their huge mass. The more dense a body is - the less heat escapes.

I was trying to think of any extant species that have large neural arches the other day. I couldn't come up with anything other than sailfish & I have no idea what they use theirs for.
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Postby dr. dugmore » Mon Sep 10, 2007 9:03 am

yes, i now understand,
thanks
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