Zavela nini izityalo zokuqala?

Mónica Sánchez

Imizuzu ye2

IiFern kwindawo yazo yendalo

Abantu, njengoko sinjalo ngoku, bebesemhlabeni malunga neshumi lamawaka eminyaka. Kodwa xa ookhokho bethu bavela, phakathi kweminyaka emi-5 ne-7 yezigidi eyadlulayo, iplanethi yathinjwa zizilwanyana ezininzi kunye nezityalo.

Asisoloko sicinga ngayo kakhulu, kodwa ukuba ibingezizo ezo, zezityalo, ubomi njengoko sisazi ukuba ngebungekho, kungoko kubaluleke kakhulu ukubazi ukuze sibakhusele. Yiyo kanye le nto siza kuyenza ngokulandelayo: ukubazi ngakumbi, ukufumanisa ukuba izityalo zokuqala zavela nini. Ubhalisile? 😉

Zavela nini izityalo zokuqala?

I-Microalgae ibonwa ngemicroscope

Nangona namhlanje kukho izityalo kokubini elwandle nakumhlaba, malunga neebhiliyoni ezine zeminyaka eyadlulayo imeko yayihlukile. Izidalwa ezikhoyo namhlanje ziye zavela kwiimolekyuli apho iklorofili yavela khona, enkosi apho banokuguqula amandla elanga abe kukutya (ubukhulu becala iswekile) emanzini nakwikhabhon dayoksayidi emoyeni.

Yiyo loo nto iiseli zokuqala zikwazile ukuqinisa inwebu yazo, nto leyo eyazincedayo ukuba ziqokelele ukutya. Kungekudala emva koko, i-microalgae yokuqala yavela, apho zonke izityalo ezihlala kwaye zihlala emhlabeni ziya kwehla ngaphezulu kwesigidi seminyaka.

Ithini imbali yendaleko yezityalo?

Umzekeliso wesityalo se Cooksonia

Cooksonia

Bhalisa kwitshaneli yethu yeYouTube

Njengolwandlalo, sikuxelela ngembali yendalo yezityalo:

  • I-3.500 yezigidigidi zeminyaka eyadlulayo: kuvela ubulembu, ezazizizityalo zokuqala ukushiya imeko yolwandle.
  • Malunga neminyaka engama-470 yezigidi eyadlulayo: kuvela isityalo semithambo sokuqala, esaziwa njenge Cooksonia. Yayingenamagqabi okanye iintyatyambo, kodwa iziqu zayo zazinokukwazi ukufota.
  • Malunga ne-370 yezigidigidi zeminyaka eyadlulayo: izityalo zokuqala ziyavela imithambo, Eyokuqala yeyokuba Elkinsia polymorpha.
    • Iminyaka engama-300 ezigidi eyadlulayo: ii-conifers ziyavela.
    • 270 yezigidi zeminyaka eyadlulayo: cycas kunye Ginkgo yenza ukubonakala kwazo.
    • Iminyaka engama-200 yezigidi eyadlulayo: iiferns ziqala ukuvela.
  • Malunga ne-150 yezigidigidi zeminyaka eyadlulayo: kuvela izityalo ngeentyatyambo Iinkqubo.

Intyatyambo yepinki yendalo

Ngaba ibikubangela umdla kuwe? 🙂


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  1. Uxanduva lwedatha: UMiguel Ángel Gatón
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  1.   Michelangelo sitsho
    yenzayo 7 iminyaka

    Wowu !! Kuyamangalisa ukuba indalo yezityalo yayinjani kwaye yathatha njani izigidi zeminyaka ukufikelela kweli nqanaba, kulusizi ukuba abantu abaziniki ixabiso elilingana nazo.

    Inqaku elihle

    Izibingelelo zaseMexico

    Phendula uMichelangelo
    1.    UMonica Sanchez sitsho
      yenzayo 7 iminyaka

      Siyavuya uyithandile, Miguel Ángel. 🙂

      Phendula uMonica Sánchez