Angiosperms use which temporary reproductive structures that are not present in any other group of plants?

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Angiosperms are the only group of plants that have flowers, which are temporary reproductive structures. Cones are found in gymnosperms, carpels are found in angiosperms but are not temporary structures, receptacles are part of the flower structure, and seeds are reproductive structures but also found in gymnosperms.

Angiosperms Use Which Temporary Reproductive Structures That Are Not Present