Which of the following is the correct sequence in the biological method?
A. Observation?hypothesis?law?theory
B. Observation?hypothesis?deduction?testing of deduction
C. Hypothesis?observation?deduction?testing of deduction
D. law?theory?deduction?observation
How many spiracles are present in cockroach_____________?
A. 5
B. 10
C. 20
D. 40
Salivary glands present in front of ear are___________?
A. Sublingual
B. Submaxillary
C. Submandibular
D. Parotid
NADH is oxidized by___________?
A. Coenzyme ?
B. Cytochrome b
C. Oxygen
D. Glycolysis
The arrangement of _________ speaks of the division of labour within cell?
A. Molecule
B. Subatomic particles
C. Atoms
D. Organelles
Initial pH of food vacuole during digestion in amoeba is____________?
A. 5.3
B. 5.6
C. 7.3
D. 7.6
If bile pigments are prevented from leaving digestive tract, then they cause_____________?
A. Hepatitis
B. Jaundice
C. Gall stones
D. Blockage
Double fertilization is feature of____________?
A. Ferns
B. Whisk ferns
C. Gymnosperms
D. Angiosperms
Alternation of generations is absent in___________?
A. Hydration
B. Obelia
C. Jelly fish
D. Physalia
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