Tarifs Connexion Inscription

Catégories : Tout - stigma - pollination - fertilisation

par ong hui Il y a 18 années

511

Flowering plant-junhui

Flowering plant-junhui

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Mental Retardation

Mental Retardation

par SAMIR ELIAS GONZALEZ KESIE

OurStory of LGBTQ Social Oppression

OurStory of LGBTQ Social Oppression

par Yvette Quintana Pascal

NCMHAD History

NCMHAD History

par A Golden

ciclo di vita delle farfalle

ciclo di vita delle farfalle

par Giuseppina Vinciguerra

Flowering plant

female

stigma

ovary

style

ovule

male

anther

pollen grains

filament

fertilisation

pollen grain forms tube to reach ovule

male and female cells fuse

pollination

pollen grain from anther to stigma

self

cross