Describe the important characteristics of gymnosperms?

Match the following: (a) Chlamydomonas (i) Moss?

Differentiate between the following:- (i) red algae and brown algae (ii) liverworts and moss (iii) homosporous and heterosporous pteridophyte?

Explain briefly the following terms with suitable examples:- (i) protonema (ii) antheridium (iii) archegonium (iv) diplontic (v) sporophyll (vi) isogamy

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

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

Write a note on the economic importance of algae and gymnosperms.

Mention the ploidy of the following: protonemal cell of a moss; primary endosperm nucleus in dicot, leaf cell of a moss_?

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

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

What is the basis of classification of algae?

How are algae used in renewable energy?

Can algae be eaten?

Are algae harmful?

What are the uses of algae?

How do algae differ from plants?

What is the role of algae in the ecosystem?

Where are algae found?

What are the types of algae?

What is algae?