Question

The first vascular plants are ________.
a) Algae
b) Bryophyta
c) Pteridophyta
d) Angiosperms

Answer 1

hey
_____________

The first vascular plants are ________.
a) Algae
b) Bryophyta
c) Pteridophyta
d) Angiosperms

(c) pteridophyta

•body differentiation exists

•specialized vascular tissue present

•hidden reproductive system

hope helped
__________________

Answer 2

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▶ Question : The first vascular plants are ________



▶ Answer :


The First vascular plants are Pteridophyta.



✔✔ Things to remember about Pteridophyta ✅✅


1. Majority of the living Pteridophytes are terrestrial and prefer to grow in cool, moist and shady places e.g., ferns. Some members are aquatic (e.g., Marsileci, Azolla), xerophytic (e.g., Selaginella rupestris, Equisetum) or epiphytic (e.g., Lycopodium squarrosum)


2. Majority of the Pteridophytes are herbaceous but a few are perennial and tree like (e.g., Angiopteris). Smallest Pteridophyte is Azolla (an aquatic fern) and largest is Cyathea (tree fern).


3. Plant body is sporophytic and can be differentiated into root, stem and leaves.


4. Roots are adventitious in nature with monopodial or dichotomous branching. Internally usually they are diarch.


5. Stem is usually branched. Branching is monopodial or dichotomous. Branches do not arise in the axil of the leaves. In many Pteridophytes stem is represented by rhizome.


6. Reproduction takes place by means of spores which are produced inside sporangia.


7. The development of the sporangium may be leptosporangiate (sporangium originates from a single cell) or eusporangiate (sporangium develops from a group of cells).


8. Water is essential for fertilization (zooidogamous). Therefore, Pteridophytes are also known as amphibians of the plant kingdom.


9. Spores on germination give rise to multicellular gametophytic bodies called prothalli (sing. prothallus).


10. Antheridia and archegonia are developed on prothalli.



✔✔ Hence, it is done ✅✅


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