22.7: Summative Questions
- Page ID
- 33916
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- What is pollen?
- Why was pollen an important adaptation for gymnosperms, considering the changing global conditions?
- What adaptations do gymnosperms share that allowed them to compete with SVPs?
- Describe the advantages provided by the adaptations you listed in the previous question and relate them to changes in global climate.
- How would you differentiate a fern and a cycad?
- What features do gnetophytes have that classify them as gymnosperms?
- Which features do gnetophytes have that lead people to believe they might be more closely related to angiosperms?
- What other explanation could there be for gnetophytes and angiosperms sharing these traits?
- In what climate(s) would you be most likely to find gymnosperms? Explain your answer.