From CreationWiki, the encyclopedia of creation science
Jump to navigationJump to search
2,216 bytes removed
, 25 November 2008
|
|
| Line 33: |
Line 33: |
| * [[Trypanorhyncha]] | | * [[Trypanorhyncha]] |
| |} | | |} |
| '''Tapeworms''' are parasitic flatworms that belong to the taxonomic class ''Cestoda''. Tapeworms, as their name suggests, are long and flat. They don't have a digestive tract or mouth, and they also don't have eyes because they live in darkness. Cestodans use hooks or suckers to attach to hosts. They have two big parts of their body. The first one is called Scolex which is the head of a tapeworm and they use it to suck or hook. The second one is called proglottids, it is like the skin of a tapeworm. Normally tapeworm grows 15 to 30 feet. Many tapeworms infect food to enter people's body.[http://en.wikipedia.org/wiki/Cestoda]. The class of cestoda has two subclasses, the Cestodaria and the Eucestoda. [http://www.earthlife.net/inverts/cestoda.html] | | '''Tapeworms''' are parasitic flatworms that belong to the taxonomic class ''Cestoda''. |
|
| |
|
| ==Anatomy== | | ==Anatomy== |
| A nervous system and excretory system runs inside of the body. Their body is covered by wrinkles so, it is easy to absorb nutrients. They don't have motion organ because they don't have to move. They just stay in the host's intestine and get what they need.[http://www.earthlife.net/inverts/cestoda.html]
| | |
| | |
| | |
|
| |
|
| ==Reproduction== | | ==Reproduction== |
| The cestoda's testes make sperm and fertilize other's eggs. After all the proglottids blow up to help the eggs. If intermediate hosts absorb any food or water that contains the eggs, then the eggs move into the host and become larvae. They grow in the safe parts of the body called cyst. If people eats uncooked foods, they might contain the cyst and they grow into adult worms in the human's intestines.
| | |
| | |
| | |
|
| |
|
| == Ecology == | | == Ecology == |
| Every cestoda absorbs food and nutrients by their bodies surface. People get ill(physical damage) only from big cestoda.[http://www.earthlife.net/inverts/cestoda.html]
| |
|
| |
| They occur on land, in water and places that vertebrate animals live. Also in warm places there are lots of them. There are bunch of cestoda's species and some other things.[http://www.answers.com/topic/tapeworm?cat=health]
| |
|
| |
|
| == Significance to humans ==
| |
| There are 57 species of cestoda were reported by humans. In 1999 there were so many humans who were infected by cestoda but cestoda can be one of the most important medicine for veterinarians. [http://www.answers.com/topic/tapeworm?cat=health]
| |
|
| |
|
| | |
| | |
| | |
| | {{biology portal}} |
| ==References== | | ==References== |
| * [[wikipedia:Tapeworm|Tapeworm]] by [[Wikipedia]]
| | |
| * [[Answers:tapeworm]] by [[Answers]]
| |
| * [[Earthlife:cestoda]] by [[Earthlife]]
| |
| * Prentice Hall Biology. (pg.688)by Miller Levine
| |
|
| |
|
| ==See Also== | | ==See Also== |
| {{biology portal}}
| | |
| * [[Roundworm]] | | * [[Roundworm]] |
| * [[Parasite]] | | * [[Parasite]] |
