pollen wallpaper (photo, picture)
Category:
Macro
Date: 20/01/2018
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pollen (10),
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Comments system Cackle
pollen is a fine to coarse powdery substance comprising pollen grains which are male microgametophytes of seed plants, which produce male gametes (sperm cells). pollen grains have a hard coat made of sporopollenin that protects the gametophytes during the process of their movement from the stamens to the pistil of ...