Which of the following is not the feature of gymnosperms?
parallel venation
perennial plants
distinct branches (long and short branches)
xylem with vessels
D.
xylem with vessels
Gymnosperms are naked seeded plants in which ovule is not covered by ovary. In gymnosperms, xylem contains only tracheids and xylem parenchyma; vessels are absent.
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.
Cyanobacteria are classified under
Fusion of two gametes which are dissimilar in size is termed as
Mock Test Series
