Fill in the Blanks Pollination and fertilizationOnline version Fill in the gaps with the appropriate words. by Gabriel Pérez Comendador 1 stigma ovule ovule open embryo tube pollen zygote spermatozoid top zygote wind stigma seed fertilization seed seed tube The grains of are transported by the or by the insects to the top part of the pistil , called the . It sticks to the part of the pistil , called the . The pollen covering breaks and forms a pollen which grows down towards the - buds . The travels down the pollen and , inside the - buds , meets the and fertilizes it . This process is called . Then , a fertilized develops into a . The grows and develops into an which grows into a .
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