AP BIOLOGY

Detailed explanation-1: -The ferns, gymnosperms, and flowering plants are all vascular plants. Because they possess vascular tissues, these plants have true stems, leaves, and roots.

Detailed explanation-2: -Vascular plants have roots, stems and leaves.

Detailed explanation-3: -Seeds of gymnosperms are found on the surface of modified leaves – for example the ‘cones’ of a fir tree. Angiosperms evolved later than gymnosperms. They have true roots, stems, leaves, and flowers.

Detailed explanation-4: -Bryophytes have no roots, leaves or stems. Mosses, hornworts, and liverworts belong to this group.

Detailed explanation-5: -Like forbs, grasses and trees, ferns are “vascular” plants. They have special tissues that transport fluids and nutrients internally. They also have true root systems, leaves and stems. However, ferns are unlike most plants because they do not produce flowers and seeds.