Match the following (column I with column II)
Column I                         Column II
(a) Chlamydomonas          (i) Moss
(b) Cycas                          (ii) Pteridophyte
(c) Selaginella                   (iii) Algae
(d) Sphagnum                   (iv) Gymnosperm

What is the basis of classification of algae?

What is heterospory? Briefly comment on its significance. Give two examples.

Mention the ploidy of the following: protonemal cell of a moss; primary endosperm nucleus in dicot, leaf cell of a moss; prothallus cell of a ferm; gemma cell in Marchantia; meristem cell of monocot, ovum of a liverwort, and zygote of a fern.

Differentiate between the following:- (ii) liverworts and moss

Name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.

Explain briefly the following terms with suitable examples:- (vi) isogamy

Differentiate between the following:- (i) red algae and brown algae

When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

Explain briefly the following terms with suitable examples:- (iii) archegonium

Differentiate between the following:- (iii) homosporous and heterosporous pteridophyte

Explain briefly the following terms with suitable examples:- (ii) antheridium

Write a note on economic importance of algae and gymnosperms.

Both gymnosperms and angiosperms bear seeds, then why are they classified separately?

Describe the important characteristics of gymnosperms.

Explain briefly the following terms with suitable examples:- (iv) diplontic

Explain briefly the following terms with suitable examples:- (v) sporophyll

Explain briefly the following terms with suitable examples:- (i) protonema