________ represent the reproductive organs amongst gymnosperms.

Which of the following groups of plants play an important role in plant succession on bare rocks/soil?

Iclass phaeophyceae, the plant body is usually attached to the substratum by a _____
(A)_____, and has a stalk, the_____
(B)_____ and leaf like photosynthetic organ the_____
(C)_____.

What is the number and positions of insertions of flagella in class Rhodophyceae?

Which of the following class of algae mostly found in saltwater?

Which of the following class of algae rarely found in freshwater?

Algin, carrageen and proteins are obtained from

Fusion of two gametes which are dissimilar in size is termed as_________.

Flagellate isogametes and anisogametes are found in

Cytological information like chromosome number, structure,behaviour related with