Difference between angiosperms and gymnosperms.

Conclusions TheDifference.ru

  1. Both groups of plants have different ages of appearance on Earth. Gymnosperms appeared earlier - in the middle of the Paleozoic. Angiosperms appeared much later - at the end of the Mesozoic.
  2. The size of both groups is different. There are more flowering plants, about 350 thousand species. There are fewer gymnosperms - about 800 species that have survived on the planet today.
  3. The ovule of angiosperms is protected by the ovary of a flower; the ovule of gymnosperms, except for oppressive ones, does not have any special coating, which gives an additional guarantee of the preservation and distribution of the species.
  4. The primary endosperm in gymnosperms appears before fertilization, in angiosperms - after Navashin's double fertilization.
  5. Double fertilization is characteristic of flowering plants. Gymnosperms do not have it.
  6. Angiosperms form the fruit that “covers” the seeds. Gymnosperms have no fetus.
  7. Angiosperms are more highly organized organisms than gymnosperms.
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