Why gymnosperms is considered more advanced if compared to pteridophytes?
Pteridophytes have poorly developed vascular systems with only xylem tracheids and phloem lacking companion cells while gymnosperms have a better developed vascular systems with both having xylem vessels and tracheids and phloem companion cells.
Why are gymnosperms more advanced than pteridophytes?
Gymnosperms have an advanced root foundation and are made up of vascular tissues, whereas pteridophytes are divided into root systems, stalks, and leaflets. In pteridophytes, the main part of evolution i.e the seed is missing.Jul 31, 2021
How gymnosperms are more evolved than pteridophytes explain?
Answer. Explanation: In pteridophytes both microspores and megaspores are released from their respective sporangia, whereas in gymnosperms, megaspore is permanently retained.Jul 28, 2021
How pteridophytes are more advanced than bryophytes and less developed than gymnosperms?
Pteridophytes differ from bryophytes in having well-differentiated body structures such as roots, stems, and leaves. They do not have vascular structures within the body. They have well-developed vascular tissues to supply water and minerals to body parts. They have primitive rhizoid structures to anchor to the ground.
Why gymnosperms are more advanced than bryophytes?
Unlike bryophyte and fern spores (which are haploid cells dependent on moisture for rapid development of gametophytes), seeds contain a diploid embryo that will germinate into a sporophyte. Storage tissue to sustain growth and a protective coat give seeds their superior evolutionary advantage.
Why are gymnosperms thought to be more advanced than ferns?
Gymnosperms possess several key evolutionary innovations compared to earlier groups such as the clubmosses and ferns. They produce sperm-containing pollen, which is carried through the air by the wind to the female. This innovation has freed these plants from the need for water for sexual reproduction.
How are gymnosperms more advanced than ferns?
Gymnosperms possess several key evolutionary innovations compared to earlier groups such as the clubmosses and ferns. They produce sperm-containing pollen, which is carried through the air by the wind to the female. This innovation has freed these plants from the need for water for sexual reproduction.
What advantage did gymnosperms have over ferns?
What advantage did gymnosperms have over ferns? Gymnosperms produce pollen and do not require water to reproduce. Both seed protection and seed dispersal are correct.
How do gymnosperms differ from ferns?
Ferns are not gymnosperms. They are pteridophytes. They have a well-developed vascular system. They do not produce seeds or flowers, hence called cryptogams.
How gymnosperm are more evolved than pteridophytes explain?
Answer. Explanation: In pteridophytes both microspores and megaspores are released from their respective sporangia, whereas in gymnosperms, megaspore is permanently retained.Jul 28, 2021
Why is gymnosperm considered more advanced than pteridophytes?
Gymnosperms have an advanced root foundation and are made up of vascular tissues, whereas pteridophytes are divided into root systems, stalks, and leaflets. In pteridophytes, the main part of evolution i.e the seed is missing. Hence, gymnosperms are viewed as further developed.Jul 31, 2021