Question

five types of plantae. explain each one of them.

Answer 1

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The kingdom Plantae is divided into five main divisions. The major divisions of Plantae are Thallophyta, Bryophyta, Pteridophyta, Gymnosperms and Angiosperms.

These divisions are based on the following criteria:

• Differentiated/Undifferentiated plant body

• Presence/absence of vascular tissues

• With/ without seeds

• Naked seeds/seeds inside fruits

Thallophyta: Simple body design; with no differentiation into root, stem and leaves.

Bryophyta: Body is differentiated into stem and leaf-like structures. Vascular system is absent.

Pteridophyta: Body is differentiated into root, stem and leaves. Vascular system is present. Reproductive organs are inconspicuous. Seeds are not produced.

Gymnosperms: Seeds are naked.

Angiosperms: Seeds are covered.

Answer 2

plantae is divided into five

1. Thallophyta

it dont have well diffrentiated body

it is called as algae

it is aquatic

examples : ulothrix,ulva and chara

2.Bryophyta

it is called amphibians of plant kingdom

it has differentiated body

no vascular tissues

examples: funaria,marchantia

3.pteridophyta

it is differentiated into stem, leaf, roots

it has vasucal tissue

the reproductive in all these three groups are very inconspicuous and called as cryotogams

4.Gymnosperm

it has naked seedsand are usually pernnelial , evergreen and woody

examples: pines and deodar

5.Angoisperm

it is called as flowering plants

plants having  single cotyledon so it is called as monocotyledon

plant which have more than one cotyledon is called diocots