Question

Main difference between thallophyta, bryophyta , pteridophyta ,gmnosperms and angiosperms

Answer 1

Thallophyta: means the simplest plants which possess undifferentiated or thallus like forms, celled nojacketed reproduction organ and lack of embryo stage, also lack of vascular tissue
( exp only algae)
Bryophytes: are called amphibians of plant kingdom because these plants can live in soil but are dependent on water for sexual reproduction.
bryophytes have following
it is thallus like and prostrate or erect and attached to the substratum by uni or multi cellular rhizoids.
it produces gametes hence called gametophyte

pteridophytes:they are first terrestrial plant possess vascular tissue xylem and phloem
pteridophytes the main body is a sporophyte which is differentiated into true root stem and leave.
gymnosperms: palnt in which the ovules are not enclosed by any ovary wall and remain exposed .naked seed
angiosperms:
seed are enclosed

Answer 2

Answer:

Similarities b/w thallophyta, bryophyta, pteridophyta, gymnosperm and angiosperm

Explanation:

THALLOPHYTA :

1. Aquatic in nature.

2. No roots and shoot system.

3. Leaves, flowers and fruits are absent.

4. Mode of reproduction - Sexual and asexual.

BRYOPHYTA :

1. Aquatic and land living.

2. Roots and shoot are not differentiated properly.

3. Leaves, flowers and fruits are absent.

4. Mode of reproduction - Sexual and asexual.

PTERIDOPHYTA :

1. Mostly land living.

2. Proper root and shoot system with specialised tissue.

3. Leaves are present but fruits and flowers are absent.

4. Mode of reproduction - Sexual and asexual.

GYMNOSPERM :

1. Land living in nature.

2. Proper root and shoot system.

3. Fruits and flowers are absent and naked seeds are present.

4. Mode of reproduction - Sexual.

ANGIOSPERM :

1. Land living in nature.

2.Proper root and shoot system.

3.Leaves, fruits and flowers are present and seeds are found inside the fruit.

4. Mode of reproduction - Sexual.