The given diagram shows:

1. An alga that lacks flagellated cells

2. A liverwort

3. A heterosporous pteridophyte

4. A gymnosperm with non-motile sperms

Which one is correct about heterosporous pteridophytes?
1. Microspore and megaspores develop into the male and the female gametophytes respectively.
2. The female gametophyte are retained on the parent sporophyte for a variable period.
3. The development of the zygote into the embryo takes place within the female gametophyte.
4. All

In bryophytes and pteriodophytes, transport of male gametes requires

1. insects

2. birds

3. water

4. wind

Which one of the following is heterosporous?
1. Dryopteris
2. Salvinia
3. Adiantum
4. Equisetum

Heterosporous pteridophyte includes both:

1. Lycopodium and Equisetum

2. Selaginella and Salvinia

3. Psilotum and Phylloglossum

4. Selaginella and Equisetum

In ferns, fertilization does not involve:

In heterosporous members of the pteridophyta

Which one of the following is considered important in the development of seed habit?

In pteridophytes, gametophyte that develops in the homosporous species is usually
1. Monoecious and has events, precursor to the seed habit.
2. Dioecious and does not lead to seed habit.
3. Monoecious and does not lead to seed habit. 
4. Dioecious and has events, precursor to the seed habit.

The spreading of living pteridophyte is limited and is restricted to narrow geographical region because of

1. Growth requirements of gametophyte (cool, damp and shady places).

2. Requirement of water for fertilisation.

3. Absence of stomata in leaf and absence of vascular tissue.

4. Both 1. and 2..