Dab tsi yog pawg loj ntawm tsob ntoo lub nceeg vaj?
Dab tsi yog pawg loj ntawm tsob ntoo lub nceeg vaj?

Video: Dab tsi yog pawg loj ntawm tsob ntoo lub nceeg vaj?

Video: Dab tsi yog pawg loj ntawm tsob ntoo lub nceeg vaj?
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TSEV KAWM NTAWV

Cov pab pawg loj tshaj plaws muaj cov nroj tsuag uas tsim tawm noob . Cov no yog cov paj ntoo (angiosperms) thiab conifers, Ginkgos, thiab cycads ( gymnosperms ua ). Lwm pab pawg muaj cov nroj tsuag tsis muaj noob uas rov tsim dua los ntawm spores. Nws muaj xws li mosses, liverworts, horsetails, thiab ferns.

Cia li xav txog qhov no, dab tsi yog 5 pawg tseem ceeb ntawm lub nceeg vaj cog?

Biologist Whittaker tau muab rau peb Tsib Kingdom Classification, faib tag nrho cov kab mob nyob rau hauv tsib lub nceeg vaj - Protista, Monera, Fungi, Plantae thiab Animalia. Kom paub ntxiv txog nroj tsuag , nws yog ib qho tseem ceeb kom paub ntau ntxiv txog cov Kingdom Plantae los yog hauv cov lus yooj yim cov cog lub nceeg vaj.

Qhov thib ob, ob hom nroj tsuag yog dab tsi? Cov cog lub nceeg vaj tau categorized rau hauv ob pawg 'cryptogams' thiab 'phanerogams' raws li lawv cov noob muaj peev xwm.

Lawv yog raws li nram no:

  • Thallophyta.
  • Bryophyta.
  • Pteridophyta.
  • Gymnosperms.

Kuj Paub, dab tsi yog cov nroj tsuag loj?

Lub nceeg vaj Plantae muaj plaub pawg cog loj Hauv av: bryophytes (mosses), pteridophytes (ferns), gymnosperms (cone-cov kabmob nroj tsuag ), thiab angiosperms (flowering nroj tsuag ). Nroj tsuag tej zaum yuav categorized li vascular los yog nonvascular. Ib vascular cog muaj cov ntaub so ntswg rau kev thauj dej los yog kua qaub.

Dab tsi yog qhov tseem ceeb ntawm cov nroj tsuag?

Ob tug loj pab pawg ntawm nroj tsuag yog ntsuab algae thiab embryophytes (av nroj tsuag ). Peb bryophyte (nonvascular) divisions yog liverworts, hornworts, thiab mosses. Xya tracheophyte (vascular) faib yog clubmosses, ferns thiab horsetails, conifers, cycads, ginkgos, gnetae, thiab flowering nroj tsuag.

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