Seed plants have pollen
The dust produce male gametes in the wake of entering the female gametophyte. The male gametes intertwine with the egg cell and structure the undeveloped organism inside ovary which develops and frames seeds. The vascular seed plants come up short on dust yet rather creates male gametes in gametangia which are supplanted by the dust in the seed plants.
Seeds and pollen as a Developmental Transformation to Dry Land
Capacity tissue to support development and a defensive coat give seeds their predominant transformative benefit. A few layers of solidified tissue forestall parching, liberating propagation from the requirement for a steady stockpile of water.
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