Mawaho a me na 'ole Amphioxus

Lancetshaped Slug - i ka he lōʻihi manawa kapa i kēia pohihihi holoholona. Ano,ʻepekema ike pono i ka mea nui keʻano o ka hanaʻana o ka loa primitive Luna o ke 'ano o Chordates. Helehelena, ka mea maloko 'ole o Amphioxus a me hiʻona o kona physiological keʻano o ka hanaʻana, a e e kūkākūkā i loko o kā mākou' atikala.

Mōʻaukala o ka mai a kaianoho koholā

Back ma ka 18th kenekulia, ka mea kaulana Lūkini hele a me nä känaka 'epekema Peter Simona Pallas loaʻa i loko o ka Black Sea wai translucent liʻiliʻi a pau. Mawaho, ka mea, nana aku la e like me ka mollusk. E möakäka hou noiʻi a me ka 'ole o ka Amphioxus hoike mai i keia meaola mea he kahiko chordates. Mai ia originate a pau vertebrates.

Amphioxus ma ka ano hiki ke loaʻa ma ka lalo o ka moana a me ka moana. He kanu ola ia ma ke one ma ka hohonu o ka 25 mau mika. Ke larvae o keia holoholona i loaʻa i loko o ka plankton - ka hoʻopiha o nā mea kanu a me nā holoholona ma luna o ka ili o ka wai. Inā ke one mea, ua wehe, Amphioxus burrow i loko o ia mea nui,ʻilikai i ka palena wale nō i ka hapa uuku wale no o ka mua hope o ke kino. Inā ka lalo ili ua haku o ka silt, ka mea e moe ana ma ka ili honua. Amphioxus hiki i hoʻoneʻe ma waena o (particles) o ke one maka.

Mau holoholona makemake e hoopau i panalāʻau, i ka helu ana o na kanaka i na tausani o kanaka ihoiho. E hoolilo ana i naciiiuo migrations, pū e lanakila i ka mamao o kekahi mau kilomika.

Mawaho 'ole Amphioxus

Ka 'ole o Amphioxus, a he oiaio, ua kino kinona, hoʻoholo ihola kona inoa. Ma helehelena ia mea mea i like loa me kaʻoki lāʻau lapaʻau mea kani. Ua kapaʻia ka lancet. Ke kino o ka holoholona flattened laterally. Ka mua hope Ua tapered, a me ka hope kēlā e oki ai. Ma kaʻaoʻao ventral a me ka dorsal uhi ano nā pā, a merge i loko o ka lanceolate huelo fin ma ka hope o ke kino. Ana o keia holoholona, ua uuku - mai i 8 knm.

veils

Amphioxus mawaho 'ole - He kuhikuhi i ke kino uhi. He ua poe e ka uhi lole - he hookahi ahu iho la ka epithelium. Mai ma luna o ka mea, ua uhi ia me ka lahilahi ahu iho la ka ka cuticle. Like iʻa, ili keena paka he wahi lihi iki o ka mucus e uhi i ke kino holoʻokoʻa. Ma lalo o ka uhi lole mea he ahu iho la ka connective'aʻaʻa.

Iwi a me nāʻiʻo

Avilable Amphioxus i ho'ākāka 'a me ka'ōnaehana hoolako kākoʻo a me ka neʻeʻana. Ua Ua hoʻonohonohoʻano primitive. Iwi poe ma ka chord, a holo ma ke kino holoʻokoʻa, mai ka mua a hiki i hope i ka hope. Musculature i ka palapala o nā kaula makalii. Ka mea, e holo ana ma na aoao a elua o ka iho kaula. Oia ka 'ole i mea e hiki ai, e lawe mai wale Amphioxus repetitive ka neʻe' ana. Me nāʻiʻoʻo ia Halala i ke kino i loko o kekahi ao ao. Ke notochord kekahi hana me ka counterbalance - straightens Amphioxus.

Hiʻona o ka mea maloko 'ole o Amphioxus

Na na 'ole o ka mea i waena o ka loa primitive chordates. Lākou OEʻano o kaʻai. Mau holoholona i Kānana feeders. Digestive nenoaiu sequentially. Ua oia mai o ka waha, puʻu, a me ka naʻau liʻiliʻi me ka akepaʻa omo outgrowth. I ka mana kumu no ka Amphioxus mea uuku crustaceans, ciliates, acee? Iuo oeiia o ka līoho, larvae o nā chordates.

Wai kānana ua pili loa ua hoʻopili i ke kaʻina hana o ka hanu. Ma ka paia o ka pharynx mea he lākou o nā keena me ka cilia. Kā lākou hana a hana i kekahi mau pele o ka wai a hala ae ma ka pharynx a me ka halo o mua oä. lawe mai ia i kinoea mail. Mahope, i ka wai ua kuu i ka waho ma ka halo o mua ili. Eia kekahi, o ka oxygen ma omo a me ka hoʻokuʻu o ke kalapona'okikene lua ia lŘlŘ ma ke kino kapa.

Ma Amphioxus i hana kūikawā nā loko o ka excretion. Ka mea, i kapaʻia Nephridia. Keia mau hui kaulua palapala. Ka mea, e hoopau ai i ke permeate i ke kino, a me kekahiʻaoʻao weheʻana i ka waho ma okolozhabernuyu lua.

Ke circulatory'ōnaehana ua i paa. Ua he o na moku elua - ka ventral a me ka dorsal. Heart ua nalowale. He ka hana o ka abdominal moku ma i ke koko circulates ripple. Ua hui me ka lua loli, e kaka ana i ka na nā loko, a pela e hali ana mai kinoea mail.

ʻO ko mākou hopohopo'ōnaehana ninoieo o ka Tube hoʻonoho ma luna o ke chord. Ia, aole ia i hana i ka hanaʻia naʻe, no laila, i ka lolo ma Amphioxus kahi e. Oia kekahi primitive 'ole o ka'emi'ōnaehana, a hiki aku i ka poe ilihune kūpono' ana o ka makaukau. Ka mea, i na poe ma ka olfactory lua, Aia ma ka mua pau ana o ke kino. He hiki ke ike i ka Nine Inch waiwai makana i loko o ka wai i loko o ka mea hoʻoheheʻe moku'āina. Eia ka mea, ua noho ai a me ka tentacles e lawelawe me tactile hui,. Ma ka neural Tube i photosensitive keena.

Nā'ōlelo a me ka ulu ana

Na na 'ole o Amphioxus, a hoʻoholo i ke' ano o ka reproductive nenoaiu. He dioecious holoholona me ka mawaho fertilization. ? Ac? Oʻauhau'ēʻaʻe no ka mea, o na hua hoʻomōhala i loko o larvae, a initially lana i loko o ka wai, a e hoohalike ai i ka iʻa fry. Ke hanai nei lakou, e ulu, a me ka hope o ka manawa piholo i ka lalo, kanu kekahiʻaoʻao o ke kino i loko o ke one. Amphioxus Life expectancy mea 3-4 makahiki.

Meaning Amphioxus ma ke ano maoli, a kanaka ola

I ka Hikina Hema Asia Amphioxus ai. A i loko o kēia māhele 'āina ka mea, i ka pale kaua? Ueo no kekahi mau haneri makahiki. Poe lawaia hopu ia pololei mai ka waapa ma ka manawa, mai Augate a hiki i Ianuari, he mau hola ma hope o hoʻomaka ke kai make. E hana i kēia, e hoʻohana i ka kūikawā mea paahana. He He kānana ma luna o ka laau o kaʻohe. Iloko o ka makahiki, ua loaa i kekahi mau kakini na tona o Amphioxus. Mai ka mea, ua hoʻomākaukau mua mau kīʻaha, ka mea hiki ke palai, hoolapalapaia a maloʻo no ka mea hoʻolilo. Ka ai o keia holoholona ka loa nutritious, waiwai ma ka kumuʻiʻo a me nā bipi kūpaluʻia.

Amphioxus i primitive meaola chordates mea i hoʻolaha like subtype Golovohordovye bescherepnyh. he sedentary Aloha Hawaii lakou alakai, aʻai ma kānana. Currently, ka mea, i ole wale nō ka pale kaua? Ueony, akā, i hoʻohana 'ia no ka noiʻi no ka hoʻopaʻa' ana o ke kumu a me ka taxonomic kulana i loko o ka holoholona honua'ōnaehana ae e kuhikuhi i kumu hoohalike i loko o ka evolution o chordates.