Double fertilisation is exhibited by

(1) gymnosperms

(2) algae

(3) fungi

(4) angiosperms

Conifers differ from grasses in the :

(1) production of seeds from ovules

(2) lack of xylem tracheids

(3) absence of pollen tubes

(4) formation of endosperm before fertilization

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

Rauwolfia serpentina is used in:

1. Curing high blood pressure

2. Kidney failure

3. Eye defect

4. Diabetes