SamuwarKimiyya

Wane ne relict dabba?

уже давно минула, и огромных ящеров можно встретить только в музее и кино. Dawn na dinosaur sun dogon wuce, da kuma babbar kadangaru za a iya samu ne kawai a cikin gidan kayan gargajiya da kuma cinema. Wasu daga cikin Flora da fauna daga m tarihi sau tsira zuwa yau. Su kira sauran kaya.

sauran kaya

Miliyoyin shekaru da suka wuce, mu duniya dubi quite daban-daban. Shuke-shuke da dabbobi sun canza da yawa tun sa'an nan. Yana kira kaya daga namun daji, da cewa ba su ma daga touch tare da kakanni. Bã su da wani yawan siffofin samuwa ga tsawo-dadaddun shuke-shuke da dabbobi, da kuma ba kama zamani nau'in.

Relict dabba ko shuka iya sau da yawa a iya bayyana a matsayin mai rai m. Rashin sani sau da yawa suka hade tare da wanzuwar dinosaur. Duk da haka zamanin dinosaur dade daga Triassic lokaci (225 miliyan lita. N.) Don alli (miliyan 65 lita. N.) sauran kaya guda iya amfani da daga baya lokaci.

A lokaci bayyana a cikin 1885, godiya ga Oscar Peschel - binciken burbushin da geologists daga Jamus. Sauran kaya wani lokacin kira ba kawai abubuwa masu rai, amma kuma shimfidar, ma'adanai. Alal misali, wani hali Siberian wuri mai faɗi tundrostepnoy dauke da wani relic. Yana wanzu a cikin kwanaki na mammoths, woolly dorinu, saukarwa, saboda haka shi ne sau da yawa ake magana a kai a matsayin Santa prairies.

rarrabuwa

Sauran kaya ya kasu kashi kungiyoyin, dangane da zamanin a cikin wanda ya fara da wanzuwar su irin. Suna iya zama manyan da quaternary. Neogene, ko manyan - wani jinsin cewa riƙe su da ãyõyinMu a kalla daga lokacin da Pliocene. Wadannan sun hada da Colchis chestnut, Holly Holly, blueberries, wintergreen, boxwood.

Rabuwa ta auku kamar yadda yanayin damina. Akwai glacial relicts. Suka zauna a ƙasar tun da kankara shekaru da aka samu a cikin kogwanni, kankara, sphagnum bogs. Adder - hankula glacial relict dabba, kamar barewa gadfly, wasu dragonflies. Daga cikin shuke-shuke za a iya gano Dwarf Birch, blueberries, cranberries.

Akwai sauran sukayi fassara da cewa raba kaya game da shuka tsarin (formational), da kuma a kan geomorphological yanayi a abin da suka zauna (edaphic). Nazarin taimaka sanin yadda sauyin yanayi ya canja a su habitats, abin da canje-canje ya faru a cikin ƙasa, da ruwa, da dai sauransu.

relict dabbobi

Misalai na rai burbushin, zaune a zamaninmu zai iya zama m ba tare da wahala. Mafi yawansu ba su kasance paleoendemikami. Su halitta mazauninsu ba ma fadi da kuma fairly ya zama ruwan dare, kyale su su riƙe da yawa daga cikin siffofin m.

Mutane da yawa unexplored yankunan duniya ba dalilin yi imani da cewa ba duk da prehistoric jinsin an san. Alal misali, coelacanth ne a relict dabba detachment coelacanth, wanda ya dade da aka dauke bitattu. A shekara ta 1938, kifi bazata gano gidan kayan gargajiya curator a Afirka ta Kudu cikin gumãkan na masunta ne. Sai ya juya daga cewa wannan ne kawai irin Crossopterygii, tsira da ba rana.

Rayuwa burbushin ne ƙwarai da crocodiles. Wannan relict dabba rayu a duniya wani miliyan 85 shekaru da suka wuce, ko da yake su da kakanninsu crocodylomorpha bayyana game da miliyan 250 da suka wuce. Su girma isa har zuwa 15 mita a tsawon. Mafi yawa daga cikin tsoho jinsunan zama dadaddun kafin Cenozoic.

Saba kada habitats ba su canza tun lokacin da. Saboda haka, Semi-na cikin ruwa dabbobi masu rarrafe ba su da daidaita zuwa ga sabon yanayi da kuma gudanar da su ta riƙe da siffar kamar yadda ya kasance miliyoyin shekaru da suka wuce.

Relict dabbobi: jerin

A wadannan ne m jerin zamani kaya, suke zaune a daban-daban sasanninta na Duniya.

Species sunan ko detachment

mazauninsu

shekaru na ziyartar

dipnoi

Afirka, Australia, South America

419,2 miliyan lita. n.

tuatara

sabon Zealand

Miliyan 95 lita. n.

mudfish

North America

Miliyan 250 lita. n.

m rana

India (Western Ghats)

134 miliyan lita. n.

kofaton crabs

Kudu maso gabashin Asia, da Atlantic Coast na Arewacin Amirka

-

crocodiles

Kudancin Amirka, Amurka ta tsakiya, Afirka, kudu maso gabashin Asia, Australia

Miliyan 85 lita. n.

Harshen Laos dutse bera

Kudu maso gabashin Asia, Laos

44 da miliyan lita. n.

coelacanth

tekun Indiya

Fiye da miliyan 65 lita. n.

monotremes

New Guinea, Australia, Tasmania

217-160 miliyan lita. n.

lingula

Turai, kudu maso gabashin Asia, Arewacin Amirka

Miliyan 500 lita. n.

ƙarshe

Sauran kaya suna kira dabbobi, shuke-shuke, fungi, shimfidar da kuma ko da ma'adanai da cewa ba su canza ko sun canza marginally tun da ya faru na da nau'in. A zamani duniya akwai quite babban yawan rai burbushin da ya bayyana a 'yan shekaru miliyan da suka wuce.

A adana wadannan jinsunan da taimako zuwa wani barga sauyin yanayi, da kuma warewa. Wa ya sani, watakila jerin ne sosai fiye da haka, wanda aka sani ga mutãne, a yau.

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