Biology – 1.3 Features of organisms | e-Consult
1.3 Features of organisms (1 questions)
Bryophytes (e.g., mosses) and Pteridophytes (e.g., ferns) are both non-vascular plants, meaning they lack xylem and phloem. This limits their size and restricts them to moist habitats. Here's a comparison:
| Feature | Bryophytes | Pteridophytes |
| Vascular Tissue | Absent | Present (but not fully differentiated) |
| True Roots, Stems, Leaves | Absent | Present |
| Reproduction | Spores | Spores |
| Habitat | Moist, shady places | Moist, shady places; some can tolerate drier conditions |
Bryophytes are typically found in damp, shady environments because they rely on diffusion for water and nutrient transport. Their small size and lack of vascular tissue limit their ability to grow tall and access resources efficiently. Pteridophytes, while still needing moisture for reproduction (fertile sori), have developed a rudimentary vascular system. This allows them to grow larger than bryophytes and colonize slightly drier habitats. The development of true roots, stems, and leaves provides greater structural support and enhances their ability to absorb water and nutrients. The presence of a vascular system also allows for more efficient transport of water and nutrients throughout the plant.