Question

Pteridophytes differ from thallophytes and bryophytes in having

• A. highly differentiated plant body
• B. true roots, stem and leaves
• C. well defined vascular system
• D. all of the above

Answer 1

The correct option is D

all of the above

The correct option is D:

Explanation of the correct option :

Option D:

1. In pteridophytes, the main plant body is a sporophyte which is differentiated into true roots, stems, and leaves.
2. Pteridophytes are the first terrestrial plants bearing well-developed vascular tissues.
3. Their main plant body is a sporophyte which is differentiated into roots, stems, and leaves.
4. Pteridophytes have a well-developed system of xylem and phloem.
5. Thallophytes have an undifferentiated body with no vascular tissues present.
6. Bryophytes have a simple plant body where the plant body is attached to the substratum and they do not bear a true vascular system.
7. Some members of bryophytes may have their bodies differentiated into rhizoid, stem, and leaf-like structures.

Final answer: Pteridophytes differ from thallophytes and bryophytes in having highly differentiated plant bodies, true roots, stem, and leaves, and well defined vascular system.