Kai tsaye ba shi ne ci gaban halayyar ... tsaye ba Postembryonic Development: Misalan

Development ne mai muhimmanci factor a rayuwa. Ya fara da wani kwan da ya hadu da ƙare da mafarki. Domin post-amfrayo lokaci ne halin da kai tsaye da kuma kai tsaye ba ci gaba. Direct ci gaba - shi ne nazarin halittu aiwatar da wanda wani kwayar kwayoyin ke tsirarwa, kuma ƙaruwa, complicating su kungiyar. Wannan sabon abu ne da hankula ga mutum, kifi, da tsuntsaye da kuma dabbobi masu shayarwa.

Kaikaitaccen raya - wani tsari a cikin wanda amfrayo tasowa a cikin wani balagagge mutum hannu tare da larval mataki, tare metamorphosis. Wannan abu ya faru, misali, mafi kwaro da halittar dabba mai kafafuwa.

Musamman post-amfrayo lokaci

Lokaci na post-tayi ci gaba tare da canje-canje a cikin morphological halaye, halaye da kuma wuraren. Don shiryar da ci gaban da halayyar alama ne da cewa bayan haihuwar da tayi ne mai dada kwafin na balagaggun, shi ya bambanta kawai a girman da babu wasu halaye, wanda ake samu ne kawai tare da lokaci. An misali zai zama da ci gaban mutum, dabbobi, da kuma wasu dabbobi masu rarrafe. Kaikaitaccen ci gaba ne na hali na kwaro, mollusks da halittar dabba mai kafafuwa. A wannan yanayin, da tayin yana da gagarumin bambanci idan aka kwatanta da adult dabbobi. A matsayin misali na dace talakawa malam. Kawai bayan shi za a kammala dama, saukarwa na ci gaba, a kananan tsutsa sāke bayan fitarwa.

lokaci na ci gaban

Lokaci na post-tayi ci gaban hada da kananan yara mataki, balaga da kuma tsufa.

• Na yara lokacin rufe lokaci daga haihuwa zuwa balaga. Wannan mataki da aka bi da wani karbuwa ga sabon yanayi. Shi ne ya kamata a lura cewa mutane da yawa dabbobi da dabbobi masu rarrafe, wanda aka halin da kai tsaye hanyar post-tayi ci gaba, ci gaba kamar wancan. Bambanci ne kawai lokacin da firam. Kawo karshen lokaci na balaga.

• balaga lokaci kira da haihuwa mataki, halin da tsayawa da ci gaban. A cikin jiki akwai da kai-sabuntawa na wasu Tsarin da su sauka a hankali deterioration.
• tsufa tsawon deceleration bi ta rage tafiyar matakai. Yawanci, da rage a cikin jiki nauyi kiyaye. Idan akwai ya kasance wani m baki, da na halitta mutuwa faruwa a lokacin da muhimmanci tsarin a sakamakon slowing saukar da duk matakai gushe aiki.

Kaikaitaccen cin: misalai da kuma saukarwa

Bari mu dubi yadda rayuwa ta taso a cikin sabon alheri. Direct da kaikaitacce raya - wani lokaci kwatanta daban-daban matakai dabba sharar gida, wanda zai fara tare da wani kwan da ya hadu. A lokacin da post-tayi ci gaban da ake karshe kafa sashin jiki tsarin, akwai girma, jima'i maturation , bi da wani mabiyi dadin jikina. Next ne tsufa, kuma a cikin rashi na waje baki zo halitta mutuwa.

• Nan da nan bayan haihuwa fara wani jerin-canje. A wannan lokaci kadan daban-daban daga cikin balagaggu jiki duka biyu azahiri da badini.
• A mataki na biyu - da canji a cikin wani sabon gaba daya jiki. Metamorphosis - a postembryonic canje-canje a cikin jiki siffar da alternating dama, saukarwa.
• The uku mataki - karshe mataki, wanda ya ƙare da balaga da kuma procreation.

Halaye na kai tsaye ba

Kai tsaye ba shi ne ci gaban halayyar kwayar kwayoyin. Na ajali kwai tsutsa, wanda ƙ da externally ba a son ya fara tasawa. Bisa ga tsarin ne mafi sauki abu, yawanci ciwon karami ƙuduri. Su bayyanar, zai iya zama mugun kama su m kakanninsu. An misali zai zama da tsutsa amphibian kamar wata rana.

Externally, da tadpole ne sosai reminiscent na karamin kifi. Saboda da musamman larval gabobin, ya iya kai wani mabanbanta rayuwa fiye da balagagge samfurori. Ko rudimentary jima'i bambance-bambance da ba, don haka rabin da larvae ba za a iya kimanta. A wani yawan jinsunan, wannan mataki na ci gaba bautar wani babban bangare na rayuwarsu.

The m metamorphosis

A kaikaitaccen ci gaba da jariri dabba ne sosai daban-daban daga cikin balagagge nau'i na yawan sifofin. Tayi ƙyanƙyashe daga qwai a cikin larvae tsari wanda shigarsu metamorphosis m kafin ya kai gare shi ta adult mataki. Kai tsaye ba shi ne ci gaban halayyar dabbobi cewa sa da yawa qwai. Wadannan su ne wasu echinoderms, halittar dabba mai kafafuwa da kuma kwari (malam, dragonflies, frogs da sauransu). The larvae na wadannan halittu ne sau da yawa a cikin mabanbanta muhalli sarari fiye da adult dabba. Suna ciyar da abinci, girma da kuma a wani matsayi da za a canza kama zuwa wani adult dabba. Wadannan duniya metamorphosis tare da m physiological canje-canje.

Ribobi da fursunoni na kai tsaye ci gaba

Plus kai tsaye ci gaba ne da cewa ci gaban da bukatar da yawa kasa da makamashi da kuma m sinadaran, kamar yadda babu duniya rearrangement ba ya faruwa a cikin jiki. A downside shi ne cewa ci gaban da tayi bukatar manyan reserves na gina jiki a qwai ko brooding a cikin mahaifa.

A korau al'amari ne da cewa tsakanin matasa da kuma adult dabbobi na iya zama gasa tsakanin jinsunan a matsayin su wuraren da abinci kafofin ne guda.

Ribobi da fursunoni na kai tsaye ba

Saboda gaskiya cewa kwayoyin na kai tsaye ba irin na rayuwa cikin daban-daban muhalli maharibai, gasar tsakanin larvae da manya yawanci ba su faruwa. A amfani ne kuma da cewa da larvae na masu zama a gida halittun taimaka fadada fannin hankali da ta mazauninsu. Daga cikin disadvantages shi wajibi ne don saka da cewa kaikaitaccen ci gaba da dabbobi a cikin adult sau da yawa yana na dogon lokaci. Domin ingantaccen rikirkida bukatar babban adadin gina jiki da kuma samar da makamashi.

Nau'in na kai tsaye ba

Wadannan iri tsaye ba cin: cike da kuma m metamorphosis. Cikakken ci gaban tsaye ba hira halayyar kwari (kwari, beetles, wasu Hymenoptera). Hatched larvae fara ci haske, girma sa'an nan zama ajali cocoons. A wannan jiha, duk da gabobin jiki rushe shi, da kuma sakamakonsa na salon salula abu da kuma tara gina jiki ne dalilin samuwar wani mabanbanta jikinsu, halayyar da adult kwayoyin.

M metamorphosis tsaye ba postembryonic cin halayyar ga dukkan jinsunan kifaye da kuma halittar dabba mai kafafuwa, wasu jinsunan tsutsotsi, mollusks da kuma kwari. Babban bambancin daga cikakken hira ne da rashi na rafta mataki.

A nazarin halittu rawar da larval mataki

A larval mataki - da lokaci na aiki girma da kuma gina jiki ajiya. Appearance ne yawanci sosai daban-daban daga cikin balagaggu form. Suna da nasu musamman Tsarin da jikinsu, wanda ba su da balaga da mutane. Su rage cin abinci na iya ma bambanta. Larvae sukan saba da yanayi. Alal misali, tadpoles rayuwa kusan na musamman a cikin ruwa, amma ba zai iya rayuwa a kan ƙasa, kamar yadda ya fara tasawa rana. Wasu jinsunan a cikin balagaggu mataki ana gyarawa, yayin da su larvae tafi da amfani da wannan damar domin motsi da kuma fadada mazauninsu yankin.