Dab tsi yog strobili lossis cones?

Cov txheej txheem:

Dab tsi yog strobili lossis cones?
Dab tsi yog strobili lossis cones?

Video: Dab tsi yog strobili lossis cones?

Video: Dab tsi yog strobili lossis cones?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

A conifer conifer yog ib qho khoom nruab nrog ntawm cov nroj tsuag hauv kev faib Pinophyta uas muaj cov qauv kev ua me nyuam. Lub khob hliav qab uas paub zoo yog poj niam lub khob hliav qab, uas tsim cov noob. Cov txiv neej lub khob hliav qab, uas tsim cov paj ntoos, feem ntau yog herbaceous thiab tsis tshua pom tseeb txawm tias tag nrho cov maturity.

strobilus yog dab tsi?

Strobili yog obovate thiab tsis muaj npe (tsis taw tes rau ntawm lub apex), mus txog 35mm ntev los ntawm 22mm dav, thiab tsim los ntawm txog cuaj whorls ntawm stalked, peltate sporangiophores bearing elongate sporangia nyob rau hauv qis dua..

Dab tsi yog strobili lossis cones muaj nyob hauv?

Strobili lossis cones muaj nyob rau hauv qee qhov pteridophytes (xws li, Selaginella thiab Equisetum) thiab tag nrho cov gymnosperms.

Dab tsi yog strobili hauv gymnosperms?

Strobili muaj lub qia luv nrog ob peb nplooj hloov (sporophylls) uas dais sporangia. Zoo li tag nrho cov noob nroj tsuag, gymnosperms yog heterosporous. Cov sporangia uas tsim cov txiv neej microspores thiab poj niam megaspores feem ntau yug los ntawm cov cones cais.

Dab tsi yog strobili hauv biology?

Ib "cone" (xws li cov ntoo ntoo). Nws yog lub cev txiv hmab txiv ntoo ntawm gymnosperms. Nws tuaj yeem yog txiv neej lossis poj niam.

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