What is meant by a closed carpel

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1. Identify some angiosperms that has economic/medical importance to man.

2. What transformations must have occurred if gymnosperms really were the ancestors of angiosperms? Which might have occurred earlier (are present in all relictual angiosperms) and which later (are absent from some of the most relictual angiosperms)?

3. What is meant by a closed carpel as opposed to an open cone scale?

4. Describe what the early angiosperms may have been like with regard to flowers, body, ecology, wood, and pollen. For each of the characters, what living angiosperms still have those characters? In what ways have those characters changed in certain lines of evolution?

5. What is a "ranalean" flower? Describe its features. Does any monocots have ranalean flowers? Any dicots? What group was formerly known as the "Amantiferae"? Why were they considered relictual?

Reference no: EM132710337

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