Question 51
Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.

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Solution

* Thallophyta, bryophyte and Pteridophyta are called cryptogams because the reproductive organs of all these three groups are inconspicuous.
* Gymnosperms and Angiosperms are called as Phanerogams because these plants have well differentiated reproductive tissues that ultimately make seeds

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Question 51
Thallophyta, Bryophyta, and Pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.

Q. Thallophytes, bryophytes and, pteridophytes are included in 'cryptogams', whereas gymnosperms and angiosperms are 'phanerogams'. Why?

Question 3
Which among the following produce seeds?

(a) Thallophyta
(b) Bryophyta
(c) Pteridophyta
(d) Gymnosperms

Q. Thallophyta, Bryophyta and Pteridophyta are called:

Q. Identify the correct difference between gymnosperms and angiosperms.
1. Gymnosperms do not form fruit, angiosperm form fruit.
2. Gymnosperms have naked seeds, angiosperms have enclosed seeds.
3. Gymnosperms are dicots, all angiosperms are monocots.
4. Gymnosperms are phanerogams, angiosperms are not phanerogams.

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Question 51 Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.

* Thallophyta, bryophyte and Pteridophyta are called cryptogams because the reproductive organs of all these three groups are inconspicuous. * Gymnosperms and Angiosperms are called as Phanerogams because these plants have well differentiated reproductive tissues that ultimately make seeds

Question 51
Thallophyta, bryophyta and pteridophyta are called as ‘Cryptogams’. Gymnosperms and Angiosperms are called as ‘phanerogams’. Discuss why? Draw one example of Gymnosperm.

* Thallophyta, bryophyte and Pteridophyta are called cryptogams because the reproductive organs of all these three groups are inconspicuous.
* Gymnosperms and Angiosperms are called as Phanerogams because these plants have well differentiated reproductive tissues that ultimately make seeds