1. Explain why the development of the seed was an important event in the evolution of vascular plants. (3) 2. The sperm reached the egg by means of swimming in the ferns. How do the sperm reach the egg in a) cycads, and b) pine trees. (4) 3. Provide two differences between the reproductive structures of the cycads and the conifers. (3) 4. Discuss why the gymnosperms invest reserves into producing so much of pollen. (3) 5. Explain the morphological adaptations of the conifer seeds to seed dispersal. (3) 6. Discuss why seed dispersal is important. (4)
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The development of the seed was an important event in the evolution of vascular plants because it allowed plants to spread their pollen and their genetic material. Show more…
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