He aha ka ka okoa deuterostome a me protostomes holoholona

Ma ka hōʻike no ka hooulu ana o ke ola meaola hiki pinepine huli i ka hua'ōlelo "protostomes" a me ka "deuterostome holoholona." Ia a pau na multicellular wale coelenterates, a oko ma ka embryonicʻilikai.

? Ac? O chordates

Chordata poe maʻekolu pūʻulu o meaola:

• tunicates ole lichinochnohordovymi (Tunicata, Urochordata), a i ke eke kino, wahi iho la ia wahi;
• bescherepnyh ole golovohordovymi (Acrania), e noho ana i loko o ka hohonu o ke kai iʻa-e like mea immobile;
• vertebrates - 'elele o ka iʻa, amphibians, nahesa, na manu, na holoholona a me nā kānaka.

Mōʻaukala o ke kumu o chordates ua lāʻau malumalu ma ka mea ikea ole a me ke kumu o ka hailonaʻana no nā mea mahuʻi. A me ia e hou aku kekahi, e pono e maopopo i ka deuterostome protostomes a me nā holoholona. Ua Ua ikeia i oi aku mamua o 500 miliona makahiki aku nei, aole hoi au i golovohordovye. Ka mua kahua o ka hoʻonaʻauao e waiho ana i ka mea pohihihi o ke kumu malaila e likeʻole hypotheses e pili ana i ke kumu o na mea ola a pau hoi.

Hōʻuluʻulu manaʻo protostomes a me nā holoholona deuterostome

He multicellular holoholona aupuni. Protostomes a me ka deuterostome - kā lākou pololei kūpuna. Lākou mau designations Protostomia waha, a Deuterostomia i hanaʻia ma luna o nā 'ano ho okumu i ka waha o na embryos. Ma mua ka mea, ua hana mai ke primitive gut hamama (ka blastopore), a ua hanaʻia i loko o ka embryo. Ka lua - i loko o ka blastopore e hoʻomōhala ana i deducing i ka lua (anus), a ua hōʻoki i ka waha ma ka hou wahi.

Mea Maluna bilaterally symmetric meaola

Deuterostome protostomes a me nā holoholona i kā lākou mau Mea Maluna. By protostomes nā:

1. Ka pūpū.
2. Annelids.
3. Sipunculans - ilo-e like meaola holoholona, a hōʻike i ke alo o ka rudimentary circulatory'ōnaehana, excretory'ōnaehana a me na naau oʻu loop me ka anus mai mahope.
4. Echiura - meaola e noho ana i loko o meaola wai. Ka mea, i ke kino o ka paukūʻolokaʻa ÿano me ka proboscis. Waha mea he peritonealʻaoʻao. Mai nā lālā ka mea, ua hookoaiaʻe e ke alo o underdeveloped circulatory'ōnaehana a me intestinal Tube, i na welau o ka anus.
5. Pentastomida a ohe, a i ilo-me ka olelo o kona-parasitic invertebrate me iki kino, like me arthropod.
6. Onychophora a pervichnotraheynyh - hooku iho la ia ma ka honua Moana ma ke kino lōʻihi o a ma laila nō i ka 43 hui o nā wāwae.
7. Tardigrades - meaola liilii, me ka eha hui o nā wāwae.
8. Arthropods.

Deuterostome holoholona a deyterostomy hoʻohui pū i nā kēia mauʻano o nā holoholona:

• chaetognaths;
• poluhordovym (nadkishechnodyshashie a me ka krylozhabernye);
• echinoderms;
• Pogonophora;
• chordates;
• graptolites (nā minelala hao).

Kahua o ka hoʻonaʻauao o? Acaeoey deytorostom incomprehensible. Ua Ua manaoio i hoomaka lākou evolution me ka multicellular invertebrates mea e ole intersect me protostomes. 'Ē aʻe manaʻo i nā kūpuna e deuterostome haʻahaʻa ilo, ka mea i hoʻohikiʻia me primitive ano protostomes.

He aha ka ke koena unuhi mai protostomes deuterostome

Ma waho aʻeo ia ho okumu i ka muliwai poe ma ka waha, a me ka deuterostome protostomes holoholona ĸokoĸa ana nä pane i ka helu o nā 'ano:

1. No ka helu o nā hua māhele: i mua ka mea, e kahahānai, ke kuhikuhi ma ka pāhawewe, a me ka lua o ka -ʻoni iho ( 'ole-ʻaʻahu).
2. Coeloms waiho ana epekema (ku una ha): y me protostomes ulu o kiʻekiʻe pā o cavities hoʻomaka me ke kelepona hele mahele, oiai na protrusions i hana mai deuterostome pouches embryo gut.
3. Ukali ma ka lolo Kin: ma protostomes - ia e hoʻomōhala ana i loko o adulthood, a me ka lua o ka - ua hoemi a ua waiho ia ma ka hou wahi.

No ia mea, i kapaʻia deuterostome vtorichnomozgovymi mea.

ʻepekema,ʻo ke deuterostome a me protostomes holoholona i ka hoʻomaopopo like kupuna i noho oi ma mua o 500 miliona makahiki aku nei i loko o Edikarskom kai. Kaianoho koholā no ka mea ua ka seabed, ma ka mea āna i hoʻoneʻe, e hana ana i cilia i kekahi ka paopaoʻana ma luna o ka abdomen, a hanai aku la ma na tentacles e hōʻiliʻiliʻai. Paha ma hope hope kino hapa deuterostome a hiki kaʻawale, a hoʻohana 'ia e eli i loko no o ka manawa precoat, ahu iho.

Deuterostome protostomes a me nā holoholona i like i loko o ka ulu a me ka 'ole. Akā, no ka mea, haawi aku i ka helu o ka oko ao, no laila, i kā lākou mau ukali OAOOUIEeE.