What is the basis of classification of algae?
Algae are classified on the following factors:
(a) Major photosynthetic pigments present.
(b) Form of stored food.
(c) Cell wall composition.
(d) Number of flagella and position of insertion.
(e) Habitat.
Both gymnosperms and angiosperms bear seeds, then why are they classified separately?
What is heterospory? Briefly comment on its significance. Give two examples.
Explain briefly the following terms with suitable examples:
(i) protonema
(ii) antheridium
(iii) archegonium
(iv) diplontic
(v) sporophyll
(vi) isogamy
Differentiate between the following:
Red algae and brown algae
Differentiate between the following:
liverworts and moss
Differentiate between the following:
homosporous and heterosporous pteridophyte
Differentiate between the following:
syngamy and triple fusion
How would you distinguish monocots from dicots?
Describe the important characteristics of gymnosperms.
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