Characteristics of
Bryophyta
pteridophyta
thallophyta
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Answers
Answer:
Characters Thallophyta Bryophyta
Body Structure Body is undivided in the form of thallus. Body is flat, green thallus (liverworts) or leafy and erect (mosses)
True roots, stems and leaves Absent Absent
Vascular system Absent Absent
Sex organs Single-celled Multicellular
The thallophytes, the bryophytes and the pteridophytes have naked embryos that are called spores. The reproductive organs of plants in all these three groups are very inconspicuous, and they are therefore called 'cryptogamae', or 'those with hidden reproductive organs'.
Answer:
Explanation:
Plants occur in damp and shaded areas. The plant body is thallus like, i.e. prostrate or erect. It is attached to the substratum by rhizoids, which are unicellular or multicellular. They have a root-like, stem-like and leaf-like structure and lack true vegetative structure.
Pteridophytes are considered as the first plants to be evolved on land: ...
They are cryptogams, seedless and vascular: ...
They are cryptogams, seedless and vascular: ...
Spores develop in sporangia: ...
Sporangia are produced in groups on sporophylls: ...
Sex organs are multicellular:
they are usually found in moist or wet places.
This is due to the absence of “true roots” and vascular tissue that is needed to transport water and minerals. ...
They are autotrophic in nature.
Most members of this group manufacture their own food. ...
Reserve food is generally starch