IGNOU LSE 12 2016 - ‘Green algae served as ancestors of Bryophytes’. Explain.

Question

‘Green algae served as ancestors of Bryophytes’. Explain.

25 Nov 2017

Answer :

Word Count : 507

The bryophytes are quite soft and delicate and, therefore, they lack fossil records. There are no known fossil bryophytes more primitive than the forms of to-day. However, there are two schools of thought about their origin.

According to one school of thought they are evolved from the green Thallophyta the algae; and according to the other school they have been descended from the pteridophytes. Majority of the workers support their origin from the algal ancestors.

This view of the origin of bryophytes has been supported by most of the bryologists. Though there is no fossil connection between algae and bryophytes yet there are so many points in support of this view, such as-the necessity of water for the act of fertilization; their

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