Answer:
Similarities:
- They share a main plant body: diploid sporophyte.
- The sporophyte, in both groups, is separated into the root, stem, and leaves.
- They are both two major Seed Plant groups
- Vascular bundles, the strand of vessels in a plants stem or leaves, are conjoined, open, and collateral.
Differences:
- Gymno are mostly trees and they do not produce flowers, while Angio can be herbs or shrubs, and produce flowers as well.
- Gymno plants are evergreens and Angios are seasonal
- The leaves of a Gymno are thick and need like while Angio leaves are flat
- The wood of a Gymno is soft-like while an Angio has hard wood.
Explanation: I found this information on EBC or Easy Biology Class
Hopefully it helps! :)