AP BIOLOGY

Detailed explanation-1: -The bryophytes do not possess true roots, stems, or leaves, although the plant body is differentiated into leaflike and stemlike parts. In some species, there are rootlike structures called rhizoids. With no vascular tissue, the bryophytes cannot retain water for long periods of time.

Detailed explanation-2: -Bryophytes have no roots, leaves or stems. Moss and liverworts belong to this group. They are flowerless plants that grow in clumps.

Detailed explanation-3: -In bryophytes, the plant body is thallus-like, prostrate or erect and attached to the substratum by unicellular or multicellular rhizoids. They lack true roots, stem or leaves but may possess root-like, leaf-like or stem-like structures.

Detailed explanation-4: -Algae. Algae are a large group of generally aquatic plants. Like bryophytes, algae are nonvascular: They lack the xylem and phloem tissues that transport fluids and nutrients internally. They do not have leaves, roots or flowers, nor do they have rhizoids or leaflike structures like some nonvascular plants.

Detailed explanation-5: -The ferns, gymnosperms, and flowering plants are all vascular plants. Because they possess vascular tissues, these plants have true stems, leaves, and roots.