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  • Which among the following has specialised tissue for conduction of water? (i) Thallophyta

Which among the following has specialised tissue for conduction of water?

(i) Thallophyta

(ii) Bryophyta

(iii) Pteridophyta

(iv) Gymnosperms

(a) (i) and (ii)

(b) (ii) and (iii)

(c) (iii) and (iv)

(d) (i) and (iv)

Answers (1)

The plant body of Thallophytes and Bryophytes is not differentiated into roots, stems and leaves.  The vascular bundles are absent in them.

The xylem is the true vascular bundle,  a characteristic feature of land plants that include the Pteridophytes, Gymnosperms and Angiosperms, and helps in conducting water and minerals to the leaves from the soil.

Xylem and Phloem are found in Pteridophytes and they are further evolved in Gymnosperms and Angiosperms.

The correct answer is c) 'iii and iv'

 

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infoexpert21

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