Top-shaped multiciliate male gamete and seeds with two cotyledons occur in
1. Cycads
2. Conifers
3. Polypetalous angiosperms
4. Gamopetalous angiosperms

Ectophloic siphonostele occurs in
1. Marsilea and Botrychium
2. Dicksonia and Maidenhair Fern
3. Osmunda and Equisetum
4. Adiantum and Cucurbitaceae

In a moss, the sporophyte
1. Manufactures food for itself, as well as for the gametophyte
2. Arises from a spore produced from gametophyte
3. Is partially parasitic on the gametophyte
4. Produces gametes that give rise to the gametophyte

Which set contains flagellated male gametes?
1. Spirogyra, Anthoceros and Funaria
2. Zygnema, Saprolegnia and Hydrilla
3. Fucus, Marsilea and Calotropis
4. Riccia, Dryopteris and Cycas

Pollen chamber present in gymnosperms represents
1. Microsporangium
2. Pollen grain cell where sperms are formed
3. Opening of megagametophyte for passage of pollen tube to egg
4. Cavity in nucellus for resting pollen grains after pollination

In which one of the following, male and female gametophytes do not have free living independent existence

Archegoniophore is present in :
1. Marchantia
2. Chara
3. Adiantum
4. Funaria

The gametophyte is not an independent, free living generation in:
1. Polytrichum
2. Adiantum
3. Marchantia
4. Pinus

Consider the following four statements whether they are correct or wrong,
(A) The sporophyte in liverworts is more elaborate than that in mosses.
(B) Salvinia is heterosporous.
(C) The life-cycle in all seed-bearing plants is diplontic.
(D) In Pinus, male and female cones are borne on different trees.
The two wrong statements together are

Selaginella and Salvinia are considered to represent a significant step toward evolution of seed habit because: