Kutheni ekuthiwa gymnosperms: iimpawu zezakhiwo

taxon nganye zezityalo uneempawu zawo ezahlula kwi abanye. Ngesizathu esithile akunakwenzeka ukubona iintyatyambo neziqhamo pine zama? Gymnosperms Kutheni ekuthiwa? Ngokufutshane nangokucacileyo kangangoko kunokwenzeka zale mibuzo siza kuphendula kweli nqaku.

Kutheni na ngoko Gymnosperms ebizwa: Phendula

Gymnosperms ezi zityalo kuthiwa yezityalo odumileyo Andrey Nikolaevich Beketov. Njengoko umsunguli yejografi Russian zohlaza, wabhala incwadi yokuqala systematics. Ngena, kubonakala kwisihloko oku ngokukodwa kwindawo imbewu. Bona zibekwe kwi amalungu okuzala ngokuphandle, "kanye". Ngokungafaniyo izityalo eneentyatyambo ogama imbewu akhuselwe kweendonga isizalo.

iimpawu zezakhiwo

Iifom Life ezi zityalo amelwe imithana okanye imithi, kuba zabo zinti kwakhiwa ilaphu zemfundo osisi - cambium. Gymnosperms bavela luwela ephakamileyo. Nangona kunjalo, inkqubo ifakwe bangabi saba kuxhomekeke emanzini, nto leyo inkalo isakhiwo progressive. Amagqabi gymnosperms zibizwa ngokuba naliti. Bathi ngenaliti-ezifana imilo, leyo kunciphisa komhlaba apho amanzi ngumphunga.

Gymnosperms kutheni ibizwa, nangoku ucacisa ubume isizalo ngokwayo. It is a flake, nto leyo nako ukuzimela umbungu kukugodola kunye nembalela.

Ingaba kukho naziphi na iinzuzo gymnosperms?

Abantu abaninzi bakholelwa ukuba maqhuqhuva - oko kusisiqhamo gymnosperms. Kodwa lo mbono nto eziphosakeleyo. Isibakala sokuba iziqhamo akhiwa kuphela emva kuphuhliso iintyatyambo. Izityalo, nto leyo ke abameli zesebe, amalungu okuzala ezinjalo engekhoyo. Bona zimelwe cone inkunzi nemazi, apho zombini ezi ziiseli ngesondo - gametes.

Le nkqubo lwenzeka kwi gymnosperms uvuvuzelo ngumoya. Ngenxa inkunzi izixhobo amadlozi kungena imazi, apho kwenzeka ukuchumisa ukuyilwa imbewu. Xa yokugqibela aqolileyo, esikalini cone evulekileyo. Oku kwenzeka kuphela iinyanga emva-18. Ngeli xesha ungabona ngembewu ngeliso lenyama, leyo kulala ngqo kwi esikalini. Yiloo nto gymnosperms zibizwa njalo ngokuba. Ngoko ke, kula maqhuqhuva zilungiswe amahlumelo yokusebenza umsebenzi ukuzala ngokwesondo.

Ihlobo nobusika ...

iqhina zabantwana malunga uboya-umthi waziwa kuyo yonke ukususela ebuntwaneni. Inkoliso gymnosperms musa ukuphalaza amagqabi ebusika. Kutheni? Gymnosperms igama kangaka uhlobo lwesakhiwo amalungu okuzala. Kodwa ubuchule babo bahlale, ndimkhathalela ezinxulumene yawo: amagqabi kunye esiqwini. Okokuqala, ngenxa ukwakheka kwalo kunye umphezulu encinane, ukukhusela izityalo transpiration ngokugqithiseleyo.

Ebusika, lo yokondliwa natywinwa ne resin, yudagodarya leyo kweli xesha abe ngumphunga phantse ime. Khuselo zincediswe yokuba iinaliti zizele Ulobuza. Kodwa ke oku akuthethi ukuba Gymnosperms awutshintshi njengamagqabi. Iinaliti Zinokuphila zide zibe neminyaka 7, uze sife off kwaye kufakwe ezintsha. Le Ngaphandle kuphela a larch. Esi sityalo iguqula ngubo yayo nganye ngexesha.

ngezigaba

Nangona inani lemisebenzi esemqoka efanayo kweli candelo iiklasi ezininzi. Eyona emininzi kubo Conifers. Nespruce, pine, msipres, msipres, yew, nomsedare, larch - abameli imifuziselo eklasini. Igama lwafumana uhlobo igqabi - naliti.

Class Gnetova libhekisela iWelwitschia emangalisayo. Le isityalo kunye amagqabi esikhulu ukufikelela kwiimitha eziliqela ubude. Andisoze bawe phantsi. Kulo mzekelo, i umphanda ngokwayo, apho phantse ngokupheleleyo emhlabeni, akukho ebonakalayo. IWelwitschia ikhula apho umoya okokoko onamandla entlango. Bemba ecaleni amagqabi, ukuze zibonakale iinyoka.

Kodwa abameli Sagovnikovye eklasini kubhidaniswe wesundu. neziqu zabo abayi eyayizalwa. Lubonakala yi ebusweni engundoqo yaye iinkuni buthathaka. Sagovnikovyh xa kunetha amagqabi, izikhondo ahlale esiqwini.

Udidi olandelayo bubonakaliswe uhlobo kuphela - ginkgo bilobed. Le isityalo umkhuba ukuya eTshayina eJapan. Ginkgo ufikelela umphakamo oziimitha ezingama-30, yaye ububanzi we umphanda - abathathu liyanda isithsaba. Amagqabi ayo ziyindawo fan kunye elitywinwe phakathi. Iguqulwe kwi igama Japanese yale sityalo lithetha "unyawo idada", nayo ongqamana wazo. Ekwindla amagqabi ajika abe bomvu eliqaqambileyo ngebala, uze ziyawa. Kumazwe apho kukhula ginkgo, ukuba zithathwa zizityalo ezingcwele akhuselwe ngumthetho.

Ngenxa yoko, Siye sahlolisisa nesizathu sokuba Gymnosperms zibizwa njalo ngokuba. Isizathu soku kukuba indawo iimbewu esikalini amalungu okuzala. Azikho mazikhuselwe iindonga isizalo, kwaye kukho kanye, ekuhleni. Iimpawu uphawu kwezi izityalo kukungabikho iintyatyambo kunye neziqhamo, imithambo yegazi entshinyeleni yehlathi. Uvuvuzelo e gymnosperms kwenziwa umoya amagqabi kuthiwa naliti.