Pollen as large as about 90–100 µm. In angiosperms, during flower development the anther is composed of a mass of cells that appear undifferentiated, except for a partially differentiated dermis. As the flower develops, four groups of sporogenous cells form within the anther. The fertile sporogenous cells are surrounded by layers of sterile cells that grow into the wall of the pollen sac. Some of the cells grow into nutritive cells that supply nutrition for the microspores that form by meiotic division from the sporogenous cells. In a process called microsporogenesis, four haploid microspores are produced from each diploid sporogenous cell
Life Is a Flower It was rejected by the record label, although they had invested a lot of money in it. Scenography didn't fit to the happy message of the song and it was found too dark and heavy. The second music video was officially released and is much more colourful and funny. Part of the storyboard was created by Jenny Berggren herself. Ace of Base also brought some elements of scenography on their own, like a washing machine. Life Is a Flower "Life Is a Flower" is a song by Ace of Base, released as their first single from their 1998 album "Flowers".