The life cycle pattern shown in the given diagram is not seen  in:

1. Chlamydomanas

2. Spirogyra

3. Volvox

4. Ectocarpus

Zygotic meiosis is characteristic of

(1) Marchantia

(2) Fucus

(3) Funaria

(4) Chlamydomonas

Double fertilisation is exhibited by

(1) gymnosperms

(2) algae

(3) fungi

(4) angiosperms

Life cycle of Ectocarpus and Fucus respectively are

(1) Haplontic, Diplontic

(2) Diplontic, Haplodiplontic

(3) Haplodiplontic, Diplontic

(4) Haplodiplontic, Haplontic

The world's tallest (angiosperm) flowering tree is

(1) Sequoia

(2) Eucalyptus

(3) Pinus

(4) Cedrus

Occurrence of triploid (3n) primary endosperm nucleus is a characteristic feature of

(1) Algae

(2) Gymnosperms

(3) Angiosperms

(4) Bryophytes

Both bryophytes and pteridophytes:

1. are vascular cryptogams

2. have a dominant sporophyte

3. reproduce only sexually

4. are haplo-diplontic

The life cycle is not haplo-diplontic in:

1. Bryophytes

2. Pteridophytes

3. Polysiphonia

4. Fucus

The diploid sporphyte is represented by a dominant, independent, photoshynthetic, vascular plant body. It alternates with multicellular, saprophytic/autotrophic, independent but short-lived haploid gametophyte. This type of pattern is exhibited by

1. Bryophytes (Sphagnum, Polytrichum).

2.Pteridophytes (Selaginella, Lycopodium).

3. Most of the algal genera (Fucus, Chara, Polysiphonia).

4. Seed plants (gymnosperms and antiosperms).

The type of life-cycle in which there is no free-living sporophytes and the dominant, photosynthetic phase in such plants is the free-living gametophyte. We are talking about

1.Haplontic life cycle shown in Volvox and some species of Chlamydomonas.

2.Diplontic life cycle as shown in seed-bearing plants.

3.Haplo-diplontic life cycle as shown in bryophytes and pteridophytes.

<p">4.Haplo-diplontic life cycle as shown in Kelps.