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 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". The song was released in the US with different lyrics, titled "Whenever You're Near Me", and in a different key. It peaked at number 1 in Hungary and within top 10 in Denmark, Finland, Italy, Scotland, Spain, Sweden and the UK. "Life Is a Flower" was certified silver in the UK by the BPI. Two music videos of "Life Is a Flower" were shot. The first one was not finished and has never been released.