Write the difference between cryptogams and phanerogums

The main difference between cryptogams and phanerogams is that Cryptogams consist of seedless plants whereas phanerogams consist of seed-bearing plants. Cryptogams comprise plants like algae, mosses, and ferns. Cryptogams are non-flowering plants, which mainly reproduce by the production of spores.

"a.) well–developed vascular system."

c. live where it’s cold and icy