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Plant Kingdom
Question
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What is the basis of classification of algae?

Answer

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.  

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Some More Questions From Plant Kingdom Chapter

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? 

Match the followings (column I with column II)  

Describe the important characteristics of gymnosperms.