Qhov sib txawv tseem ceeb ntawm planarians thiab tapeworms yog tias planarians yog unsegmented dawb-nyob flatworms ntawm chav kawm turbellaria uas nyob rau hauv dej tshiab. Meanwhile, tapeworms yog segmented parasitic flatworms ntawm chav kawm Cestoda uas nyob rau hauv cov hnyuv ntawm cov tsiaj nrog rau tib neeg.
Platyhelminthes yog ib lub phylum uas muaj nyias, mos worms, muaj cov nplooj los yog ribbon zoo li cov qauv. Platyhelminthes tseem hu ua flatworms. Lawv pom nyob rau hauv tsev neeg planaria thiab nyob hauv cov pas dej thaum cov kab mob xws li flukes thiab tapeworms muaj nyob hauv cov tsiaj lub cev thiab tib neeg. Lub phylum Platyhelminthes muaj peb chav sib txawv: Turbellaria, Cestoda thiab Trematoda. Chav kawm turbellaria yog tsim los ntawm ntau yam kab mob uas muaj sia nyob, thaum qee tus kab mob parasitic. Trematodes feem ntau hu ua flukes. Lawv yog cov kab mob parasitic flatworms nrog lub cev tsis muaj segmented. Tapeworms yog hu ua cestodes. Lawv muaj segmented ribbon zoo li lub cev, thiab lawv yog cab.
Planarians yog dab tsi?
Planaria yog ib hom kab mob flatworms nyob rau hauv chav kawm turbellaria ntawm phylum Platyhelminthes. Lawv muaj elongated, mos thiab nplooj-zoo li lub cev, nrog ib tug ntev ntawm 0.2-nti. Txawm li cas los xij, hom loj tshaj plaws tuaj yeem ncav cuag qhov ntev ntawm 0.5 m. Lawv lub taub hau yog spade-puab thiab muaj ob lub qhov muag. Qee zaum, muaj tentacles rau nws. Ntxiv mus, lawv muaj ib tug taw tes Tail. Lawv feem ntau yog nyob dawb thiab pom nyob rau hauv cov dej tshiab. Txawm li cas los xij, muaj ntau hom tsiaj hauv av thiab marine ib yam nkaus.
Daim duab 01: Planaria
Planaria qhia lub peev xwm tshwj xeeb ntawm kev rov tsim dua tshiab. Nws yog hom ntawm asexual reproduction pom nyob rau hauv planarians. Nyob rau hauv sib piv, kev sib deev planaria yog hermaphrodites muaj ob leeg txiv neej thiab poj niam cev xeeb tub.
Dab tsi yog Tapeworms?
Tapeworms yog nyob rau hauv chav kawm Cestoda. Lawv yog cov elongated, ntev thiab elongated kab mob uas txawv ntawm qhov ntev ntawm 2mm mus rau 10m. Lawv muaj ib tug segmented lub cev, thiab ntu yog hu ua proglottids. Lub ntsiab ntu ntawm tapeworms yog hu ua scolex, caj dab thiab strobila. Lub scolex yog lub taub hau, thiab strobila ua rau cov proglottids tshiab los ntawm lub caj dab. Lawv cov txheej txheem kev loj hlob tsis zoo tab sis muaj lub tsev menyuam tseem ceeb, qhov uas cov qe tau muab tso rau.
Cov kab mob qog nqaij hlav tsis muaj kwj dej. Raws li lawv nyob hauv cov hnyuv me, lawv muaj peev xwm noj cov khoom noj khoom haus thoob plaws lub tesument. Lub excretory cell hom yog cov nplaim hluav taws xob, uas muaj cov ciliary network.
Daim duab 02: Tapeworms
Tapeworms yog hermaphroditic, thiab txhua tus proglottid muaj cov poj niam thiab txiv neej cov kabmob. Cov qe raug tsim los rau hauv ib theem larval hu ua pleocercoid larva, thiab lawv loj hlob mus rau hauv cov kab mob loj hlob hauv lub party system.
Tus kab mob tapeworm kuj yog ib qho kab mob ntawm lub plab zom mov. Ntau hom kab mob sib txawv tau koom nrog qhov pib ntawm tus kab mob, suav nrog Taenia saginata, Taenia solium thiab Diphyllobothrium latum. Lawv feem ntau muaj nyob rau hauv ib nrab siav los yog undercooked nqaij thiab ntses. Cov tsos mob ntawm tus kab mob tapeworm muaj xws li xeev siab, qaug zog, poob phaus thiab cov khoom noj tsis txaus.
Dab tsi yog qhov zoo sib xws ntawm Planarians thiab Tapeworms?
- Planarian thiab tapeworms yog flatworms phylum Platyhelminthes.
- Lawv yog cov mos mos-bodied invertebrates uas yog ob tog sib luag.
- Ntxiv mus, lawv yog acoelomates.
- Lawv tsis muaj qhov tshwj xeeb ua pa, pob txha, thiab cov hlab ntsha.
Qhov txawv ntawm Planarians thiab Tapeworms yog dab tsi?
Planarians yog flatworms nyob hauv chav kawm turbellaria ntawm phylum Platyhelminthes thiab feem ntau yog nyob dawb. Meanwhile, tapeworms yog flatworms nyob rau hauv chav kawm Cestoda ntawm phylum Platyhelminthes thiab yog parasitic thiab nyob rau hauv cov hnyuv ntawm cov tsiaj thiab tib neeg. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm planarians thiab tapeworms.
Ntxiv mus, cov planarians muaj nyob rau hauv dej tshiab, tshwj xeeb tshaj yog nyob rau hauv lub pas dej, thaum tapeworms muaj nyob rau hauv cov hnyuv ntawm cov tsiaj. Tsis tas li ntawd, cov txheej txheem, planarians yog unsegmented worms thaum tapeworms yog segmented worms. Yog li ntawd, qhov no kuj yog qhov txawv ntawm planarians thiab tapeworms.
Summary – Planarians vs Tapeworms
Planarians thiab tapeworms yog ob hom flatworms uas yog phylum Platyhelminthes. Planarians yog unsegmented flatworms, uas yog nyob dawb. Lawv nyob rau hauv chav kawm turbellaria. Ntawm qhov tod tes, tapeworms yog segmented flatworms uas yog parasitic thiab nyob hauv cov hnyuv ntawm cov tsiaj. Lawv nyob rau hauv chav kawm Cestoda. Yog li, qhov no yog cov ntsiab lus ntawm qhov sib txawv ntawm planarians thiab tapeworms.
