Examlex
Which of the following statements concerning the rate of action potential propagation is true?
Stigma
The portion of the carpel where pollen grains land during pollination (and before fertilization).
Style
The neck connecting the stigma to the ovary of a carpel.
Pollen Tube
In gymnosperms and flowering plants, a tube or extension that forms after germination of the pollen grain and through which male gametes (sperm cells) pass into the ovule.
Pollinated
The transfer of pollen from the male anthers of a flower to the female stigma of the same flower or another flower, leading to fertilization and the production of seeds.
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