Tea and coffee are affected by
Phytophthora
Cephaleuros
Herviella
Albugo candida
B.
Cephaleuros
The green algae Cephaleuros virescens causes red rust of tea. Thus, destroying the tea leaves. Similar disease is caused by the species of Cephaleuros to coffee plant, piper and Citrus species.
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.
Mock Test Series
