What are we trying to do by cutting a flatworm into peices and watching it regenerate?
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it is just an experiment to show the phenomenon of regeneration and transverse fission....as flat worm have huge capacity of regeneration
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Planaria sp. is a common freshwater, non-parasitic member of the phylum Platyhelminthes, class Turbellaria. It should be noted that the term "planaria" is most often used as a common name, much in the same way as trout. It is also the name of a genus within the family Planariidae. It moves by beating cilia on the ventral dermis, allowing it to glide along on a film of mucus. Some move by undulations of the whole body by the contractions of muscles built into the body wall. They exhibit an extraordinary ability to regenerate lost body parts. For example, a Planaria split length wise or crosswise will regenerate into 2 separate individuals. The size ranges from 3 to 12 mm, and the body has two eye-spots (also known as ocelli) that can detect the intensity of light. The eye-spots act as photoreceptors and are used to move away from light sources. Planaria have 3 germ layers (ectoderm, mesoderm, and endoderm), but lack a body cavity or coelom. They have a single-opening digestive tract, consisting of one anterior branch and two posterior branches in freshwater planarians. Because of this three-branched organization, freshwater flatworms are often referred to as triclad planarians.\n\nPlanaria are common to many parts of the world and reside in fresh water ponds and rivers. They are also commonly found residing on plants.\n\nThe most frequently used in the high school and first-year college laboratories is the brownish Dugesia tigrina. Other common varieties are the blackish Planaria maculata and Planaria dorotocephala. Recently, however, the species Schmidtea mediterranea has emerged as the species of choice for modern molecular biological and genomic research due to its diploid chromosomes and existence in both asexual and sexual strains. Recent genetic screens utilizing double-stranded RNA technology have uncovered 240 genes that affect regeneration in S. mediterranea. Interestingly, many of these genes are found in the human genome (see link below).\nContents\n[show]\n\n    * 1 Organ Systems\n    * 2 See also\n    * 3 External links\n    * 4 References\n\n[edit]\n\nOrgan Systems\n\nThe planarian has very simple organ systems. The digestive system consists of a mouth, pharynx, and an intestine. The mouth is located in the center of the underside of the body. Digestive enzymes sercrete from mouth to begin external digestion. The pharynx connects the mouth to the intestines. The intestines of the Planaria branch throughout the body. They eat living or dead small animals which they suck with their muscular mouth. From there the food passes through the pharynx into the intestines and digesting of the food takes place in the cells lining the intestine, which then diffuses to the rest of the body. The undigested food leaves through the pharynx and mouth.\n\nPlanaria receive oxygen and release carbon dioxide by diffusion. The excretory system is made of many tubes with many flame cells and excretory pores on them. Flame cells remove unwanted liquids from the body by passing them through ducts that lead to excretory pores where the waste is released on the dorsal surface of the planarian.\n\nAt the head of the planarian there is a brain under the eyespots. From the brain there are two nerve cords which connect at the tail. There are many transverse nerves connected to the nerve cords which make it look like a ladder. With a ladder-like nerve system it is able to respond in a coordinated manner.\n\nA planarian can reproduce either asexually or sexually. In asexual reproduction the planarian detaches its tail end and each half regrows the lost parts. In sexual reproduction each Planaria gives and receives sperm. Planaria have both testes and ovaries. Eggs develop inside the body and are shed in capsules. Weeks later the eggs hatch and grow into adults. Planarians can also reproduce by regeneration. If a Planaria is cut into two halves both halves may become two new Planaria (regeneration). In one experiment, T.H. Morgan found th
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lizards can regenerate tails\nnewts and salamanders can regenerate\n\nPlanarians are flat worms. If cut into pieces, each piece can grow into a new worm.\n\nSea cucumbers have bodies that can grow to be three feet long. If cut into pieces, each one can become a new sea cucumber.\n\nSharks continually replace lost teeth. A shark may grow 24,000 teeth in a lifetime.\n\nSpiders can regrow missing legs or parts of legs.\n\nStarfish that lose arms can grow new ones; sometimes an entire animal can grow from a single lost arm.
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try stepping on your picture!!! it's an animal's feces, isn't it?? it looks so fresh!!! yummie!!! see for your self if there are worms...
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simple animals have this total regeneration ability, even more, if you cut an earth worm to several pieces, each can regenerate to a complete worm.\nthis is very typical of plants.\nmore advanced/complicated animals have a much smaller regenerative ability. something in the genes of the primitive earth worms is lost among the more advanced animals.
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First go to your local sporting goods store, and get yourself some 4 inch and some 6 inch YUM dinger "worms".  And some YUM 7 inch ribbontail worms.  Also get a pack or 2 of Gamakatsu #2 worm hooks.  Rig both of these worms Texas style with out any wieght.  Cast near the edge of grass beds, where bass like to ambush thier prey from.  Also try flipping the worms near the shady side of underwater trees and rocks.  Keep your line taut by casting, and then raising your rod tip to get rid of the slack.  Do not reel in the line to pick up slack, because most hits will happen moments after the worm splashes into the water.  If it doesn't get an immediate strike, let the bait sink to the bottom, and then give the worm a few little tugs, as to jump the worm up about a foot off the bottom, then let it sink back to the bottom, then as it sinks again, keep your line taut, and do 1 or 2 cranks om the reel to pick up a little slack.  99% of hits will happen as the worms are falling down/ or sinking, so keeping the line taut will help you feel the hits. Bass usually don't eat worms off of the bottom.  You must also keep an eye on your line, because sometimes you won't feell the hit and your line may go to one side or the other and you'll know a bass has your bait.  When you hook a bass, be sure to reel him away from the cover, because that is right where the bass will go, and you have to be quick, or you will lose him.  After you get the bass away from the cover, let the fish wear itself out.  Then reel him in and carefully lip the bass.  DO NOT touch any part of the bass except the lip, unless you plan to eat them.  Fish have a protective enzyme that protects them from bacteria.  The slime is eaten away and removed, when you touch the bass, because of the amino acids on your skin.  Touching the bass removes this protective layer and opens the bass to bacterial and fungal infections which will kill the fish. Last night, I fished a heavily pressured lake and caught 9 bass in 3 hours. 8 largemouth and 1 smallmouth all with the YUM dinger.  On memorial day I fished a small farm pond and using the YUM ribbontail, I caught 16 largemouth in 4 hours.  It is all about presentation, so go to the site that the others have listed, the best is bass resource, which I put a link up for, and research how to best fish these worms.  I gave you my favorite and most productive methods.  Have fun and remember, tight lines.
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I would imagine something in the microbe department. Like a paramecium or ameba.
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How do you know that they are crabs? Do you live near a lake or stream? Can you count to 10? I agree with all of those people who suggested gasoline. The gene pool is thinning and if you used gasoline to kill the parasite-you would not be able to deplete the gene pool any further.
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if you want any nematode, you just empty your flowerpot or dig in your garden and sort the nematodes out. (Pipette will do that). \nAt Carolina Biological Supply Company you can buy vinegar eels which are some kind of nematode. \nIf you really need C elegans and no other nematode will do, the easiest way may be to write a lab working on it and they may send you some, especially if you can give them a good reason why you need some. You can try several labs, if one says no, they can't be bothered there may be another one which will. If you happen to live in a city with a university, you may be lucky and somebody happens to do research on nematodes there, so look at their website to check that out. If you go personally you are more likely to get some. And if you plan to do some research project on your own they may be able to help you and get you started. \nFor labs working with C elegans, you can start http://elegans.swmed.edu/ looking for them. \nAlso you could search medline or web of science who published an article about them recently and lives reasonably close to you.
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Catch it. Shave its head so I can set my beer on it, and make it follow me around.  Then Put it in a cage in my basement.  So I Can Have my own PET MIDGET.
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I wish they would turn into snakes and wrap themselves around you and squeeze the living day lights out of ya.\nThat would be fun to watch. I would get a good laugh out of that.
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We use to shock them out of the ground and sell them.  We took two rods and wired them with 1/2 of a 110 volt.  Stuck them in the ground and turned them on and voila! all the worms you could possible want.  At the time I think we got something like $5.00 a lb. for them.  You have to keep them cool though or they will die.  Our fridge was full of worms.
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cloning\nstem cells\ngenetic manipulation
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It's possible.  You need to have fresh stool samples examined for ova (eggs) and parasites.  Find the lab in your area which can actually do this, and ask when they want it.  Take them a fresh sample.  And repeat this several days in a row.  One sample may not show it, and another one will.  This way you can get a diagnosis of the type of worm, and get the right medicine to take to kill them.  Pork tapeworm is notorious for burrowing around the body, but I'm sure there are others.  We usually don't see this in America.  \n\nAlbendazole (Albenza)  may be the best drug to kill the worms if they are tapeworms.  If this doesn't work, may need to surgically remove them.
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First we have to set up the experiment\n1. Get several pieces of bread 6 or 8 or 12 ?...make them the same size\n2. using an eye dropper put the same amount of milk on them to start the mold (or are you going to let them mold on their own??)\n--make sure they are in an enclosed area that bugs and animals can't get to\n3. once mold is started - put down how many drops of bleach you put on each one\n..for example - \nA. piece - one drop - \nB. piece - two drops\nC. piece - three drops\nof course, if C piece accidentalyy gets 4 drops - swap it for D piece and make D- then C - and put three on the new C (hehehehe)\n4. Now closely watch and monitor your bread\n5. Note which mold was killed - and then you know how much bleach was needed\n...all mold on pieces D E F G H were killed - showing that 4 drops of bleach killed the mold
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I'm a biology teacher, and a cell model is a project every year.\n\nUse a HARD beachball about the size of a basketball....or a cheap dimestore basket ball. Cut in in half and use thin wires to suspend the various organelles inside.
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I am studing vet. tech. and YES they can get worms from a dog, depending on what type of worms they are. Hookworms and, roundworms are two that come to mind right off the bat that humans can get  I suggest you get a dewormer and then deworm again in 6 months, unless its a puppy and it should be done 2 times within a few weeks (the package will tell you how to do it)\n\nBy the way you dont have to eat the feces!Hookworm eggs can infect you just by touching them!