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Name and briefly describe the four phyla of gymnosperms.
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- Which of the following traits characterizes gymnosperms? a. The plants carry exposed seeds on modified leaves. b. Reproductive structures are located in a flower. c. After fertilization, the ovary thickens and forms a fruit. d. The gametophyte is longest phase of the life cycle.Briefly explain the term gymnosperms.List 10 uses of gymnosperms and provide a specific source for each