AP BIOLOGY

Detailed explanation-1: -Pteridophytes are found in moist, shady and damp places. They are found in crevices of rocks, bogs and swamps, and tropical trees.

Detailed explanation-2: -Pteridophytes are more common in humid places because they depend on water for their gametes to fertilize one another. In humid environments, their reproduction is more intense and they proliferate.

Detailed explanation-3: -Pteridophytes are spore-reproducing, seedless plants. They lack xylem vessels and phloem companion cells but have vascular tissues. The majority of the leaves are missing. Homosporous synangium is the sporophyte.

Detailed explanation-4: -Plants belonging to division Pteridophyta are vascular cryptogams.