Life cycle of a conifer
This image shows the life cycle of a conifer. Pollen from male cones moves up into upper branches where it fertilizes female cones.
Source
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"OpenStax College, Gymnosperms. October 17, 2013."
http://cnx.org/content/m44648/latest/Figure_26_02_01.png
OpenStax CNX
CC BY 3.0.
