A fine to coarse powder that contains the microgametophytes of seed plants, which produce he male gametes. Pollen has a hard coat that protects the sperm cells during the process of their movement.
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A fine to coarse powder that contains the microgametophytes of seed plants, which produce he male gametes. Pollen has a hard coat that protects the sperm cells during the process of their movement. 
No comments:
Post a Comment
Note: Only a member of this blog may post a comment.