Examlex
The youngest rocks found on the moon by Apollo missions are older than all but a few rocks on Earth.
Angiosperm
Flowering land plant; the seeds are borne within a fruit.
Pollination
The transfer of pollen from the male parts of a flower to the female parts, leading to fertilization and seed production.
Pollen Tube
In seed plants, a tube that forms when a pollen grain lands on the stigma and germinates. The tube grows, passing between the cells of the stigma and the style to reach the egg inside an ovule, where fertilization occurs.
Foreign Species
Species that are introduced to a new habitat where they are not naturally found, often leading to ecological imbalance.
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