Which of the following does not belong to the class Pteropsida?

1.	Dryopteris	2.	Adiantum
3.	Pteris	4.	Lycopodium

In gymnosperms, the ovules are:

The giant redwood tree, Sequoia, belongs to:

Coralloid roots in Cycas are associated with nitrogen fixing:

Which of the following is not a green alga?

All the following regarding Pinus are correct except:
1. Obligate association with mycorrhiza
2. Unbranched stems
3. Male and female strobili on the same plant
4. Leaves in fascicles

Identify the incorrect statement regarding gymnosperms in general:
1. They are heterosporous
2. Megaspore mother cell is differentiated from a cell in the nucellus
3. Multicellular female gametophyte is retained on the megasporangium
4. The male gametophyte has a large number of cells

Anisogamous sexual reproduction is seen in:
1. Ulothrix
2. Spirogyra
3. eudorina
4. Fucus

Identify the incorrect statement:

All the following are gymnosperms except:
1. Ginkgo
2. Cycad
3.Gnetophyte
4. Fern