In bryophytes and pteridophytes, transport of male gametes requires:
1. Water
2. Wind
3. Insects
4. Birds

Conifers are adapted to tolerate extreme environmental conditions because of

Which one of the following statements is wrong?

Zygotic meiosis is characteristic of

Select the mismatch:

Functional megaspore in an angiosperm develops into:

Double fertilization is exhibited by :
1. Gymnosperms
2. Algae
3. Fungi
4. Angiosperms

Life cycle of Ectocarpus and Fucus respectively are:

Fusion of two gametes which are dissimilar in size is termed as

Holdfast, stipe and frond constitutes the plant body in case of
1. Rhodophyceae
2. Chlorophyceae
3. Phaeophyceae
4. All of the above