Pollen grains in pinus have __________ for dispersal through wind?

A. Flagella
B. Cilia
C. Wings
D. Feathers

The single healthy megaspore retained within the megasporangium germinates to form an egg containing female gaemtophyte called______________?

A. Ovule
B. Seed
C. Fruit
D. Embroyo sac

Alternation of generations is absent in___________?

A. Hydration
B. Obelia
C. Jelly fish
D. Physalia

Double fertilization is feature of____________?

A. Ferns
B. Whisk ferns
C. Gymnosperms
D. Angiosperms

If bile pigments are prevented from leaving digestive tract, then they cause_____________?

A. Hepatitis
B. Jaundice
C. Gall stones
D. Blockage

Initial pH of food vacuole during digestion in amoeba is____________?

A. 5.3
B. 5.6
C. 7.3
D. 7.6

The arrangement of _________ speaks of the division of labour within cell?

A. Molecule
B. Subatomic particles
C. Atoms
D. Organelles

NADH is oxidized by___________?

A. Coenzyme ?
B. Cytochrome b
C. Oxygen
D. Glycolysis

Salivary glands present in front of ear are___________?

A. Sublingual
B. Submaxillary
C. Submandibular
D. Parotid

How many spiracles are present in cockroach_____________?

A. 5
B. 10
C. 20
D. 40