How does a flat worm regrow itself  after one half is cut off?
473021
Planarians (worms) keep clusters of non-differentiated cells within their bodies, which migrate to the parts of the body that need healing
793799
It depends on how you unravel it. The intestine is coiled not only by the tube, but also within the tube there is an incredible amount of surface area in order to absorb nutrients (and in the case of the large intestine) water. If you were to lay this epithelial tissue out flat, then uncoil the actual coiled organ, it may stretch pretty far. I'm not sure about the entire world, though.
626580
I believe it will just naturally grow back. Unfortunately it seems to take forever to grow back in!
1147829
If you look at an adult worm closely, you will notice a band of white slime.  This is called the saddle, the place that the eggs are stored.When the eggs in the egg tube are ready, the worm slips backwards out of the saddle. As the saddle passes the egg tube, six eggs are dropped in.  As the saddle passes over the worm's head, the ends close up and make a tiny lemon-shaped cocoon with the eggs inside.  This cocoon protects them until they hatch out as very small but fully developed worms.
962756
OK, so if you don't digest plasmid you'll get three bands:\n\nlinear, nicked and supercoiled.\n\nHowever, you did digest it, with 2 enzymes with 1 site each (I think?).\n\nA complete digestion would yield 2 bands.  Incomplete digestion would give those two bands, plus linearized (single cut, either enzyme).
100908
Technically speaking, it is called the vermiform appendix.  Vermi refers to worm and if you look at an appendix, you will see that it looks quite a bit like a worm.
140134
some places store tissue which is capable of regrowing into the whole plant (e.g. meristem) in liquid nitrogen. They can get them regrowing after storage. \nBut every plant species (and even varieties) requires a different adapted protocol of how to best freeze them and thaw them. Usually freeze protectants (e.g. mannitol) are added before freezing them.
550266
It is expanding to the point of dark matter.  Then it will contract back into itself.  Then it was start all over again.  This is from the my interruption of the Kaballah.
1091279
Maybe tape worm or pinworm
305646
It's impossible to identify the worm from that description.  There are a number of options.\n\nHowever, my best guess is that it is a horsehair worm.  Horsehair worms are rather fascinating creatures, possibly responsible for inspiring the film "Alien".  Adult worms live in water where they lay their eggs.  The eggs hatch into larvae, who make their way to an appropriate place to be eaten!  Once an insect (usually a grasshopper or a relative, such as cockroaches) eats them, they crawl out of it's digestive system and live in it's abdomen, growing every larger.  When they become adults, they secrete a chemical, causing the insect to get very thirsty.  It rushes to the nearest body of water, where the horsehair worm tears it's way out of the insects stomach and into the water, where it looks for another horsehair worm so it can start the whole process over again.
693273
http://en.wikipedia.org/wiki/Parelaphostrongylus_tenuis\n\nMorphology\n\nRoundworms are triploblastic protostomes with a complete digestive system. Roundworms have no circulatory or respiratory systems so they use diffusion to breathe and for circulation of substances around their body. They are thin and are round in cross section, though they are actually bilaterally symmetric. Nematodes are one of the simplest animal groups to have a complete digestive system, with a separate orifice for food intake and waste excretion, a pattern followed by all subsequent, more complex animals. The body cavity is a pseudocoel (persistent blastula), which lacks the muscles of coelomate animals used to force food down the digestive tract. Nematodes thus depend on internal/external pressures and body movement to move food through their digestive tracts. The mouth is often surrounded by various flaps or projections used in feeding and sensation. The portion of the body past the anus or cloaca is called the "tail." The epidermis secretes a layered cuticle made of keratin that protects the body from drying out, from digestive juices, or from other harsh environments, as well as in some forms sporting projections such as cilia that aid in locomotion. Although this cuticle allows movement and shape changes via a hydrostatic skeletal system, it is very inelastic so does not allow the volume of the worm to increase. Therefore, as the worm grows, it has to moult and form new cuticles. The cuticles don't allow volume to increase so as to keep hydrostatic pressure inside the organism very high. For this reason, the roundworms do not possess circular muscles (just longitudinal ones) as they're not required. This hydrostatic pressure is the reason the roundworms are round.\nMost free-living nematodes are microscopic, though a few parasitic forms can grow to several meters in length. There are no circular muscles, so the body can only undulate from side to side. Contact with solid objects is necessary for locomotion; its thrashing motions vary from mostly to completely ineffective at swimming.\nRoundworms generally eat bacteria, algae, fungi and protozoans, although some are filter feeders. Excretion is through a separate excretory pore.\nReproduction is usually sexual. Males are usually smaller than females (often very much smaller) and often have a characteristically bent tail for holding the female for copulation. During copulation, one or more chitinized spicules move out of the cloaca and are inserted into genital pore of the female. Amoeboid sperm crawl along the spicule into the female worm.\nEggs may be embryonated or unembryonated when passed by the female, meaning that their fertilized eggs may not yet be developed. In free-living roundworms, the eggs hatch into larva, which eventually grow into adults; in parasitic roundworms, the life cycle is often much more complicated.\nRoundworms have a simple nervous system, with a main nerve cord running along the ventral side. Sensory structures at the anterior end are called amphids, while sensory structures at the posterior end are called phasmids.\n\nhttp://en.wikipedia.org/wiki/Nematode\n\n\nHope that helps!
149468
it is just an experiment to show the phenomenon of regeneration and transverse fission....as flat worm have huge capacity of regeneration
326482
No.  Worms do not breath as we do.  They are essentially just one long dirt processing plant.  All gut.  If I remember my High School biology correctly, worms absorb oxygen through their skin, thus do not have breath or lungs.  \n\nPS:  You can cut a worm in half at the smooth section in the center, and it will crawl of and remain alive as two separate worms!!  Cool, huh?\n\nPSS: anojetak ... to funny!!
760952
According to the Article I listed below as the source, they can but cut in half, and you need to pour salt over them once this is done.\n\nThat's a bit gruesome, but fitting for a gruesome critter such as this Over sized Steroid pumped Cricket.\nApparently, a friend of mine told me that they have been found dead in her pool. this means they can be drowned.\n\nCatch it in a bottle, and drown it. Nothing else will work, as it's impervious to Insect spray, and it's exoskeleton is the same as a cockroach, meaning it can survive decapitated!\n\nYup, I say drown the bug.
356465
Just like an earth worm.  A peice breaks off and a new sponge is created.  Cool huh?
935334
You friend is wrong. Some worms continue to live as two worms if you cut them up, or the living part grows again.\n\nBut if you cut up a snake, you break its backbone. No creature survives a cut up back bone. Yes, it dies.
8790
None, the worm get away!