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Structure of megasporangium of gymnosperm plant with titles
Structure of green female seed cone and megasporangium of pine with titles
Stages of pollination and fertilization of pine. Sexual process of pine from formation of female gametophyte, to fertilization and formation of embryo
In this picture shown how to Peter Preaches to Jews and Gentiles, vintage line drawing or engraving illustration.
Jesus's presentation by Mary and Joseph to the temple, vintage line drawing or engraving illustration.
Development of embryo sac from megaspore