95% of the cytoplasm of RBCs is____________?
A. Hemoglobin
B. Enzymes
C. Salts
D. Other proteins
95% of the cytoplasm of RBCs is____________?
A. Hemoglobin
B. Enzymes
C. Salts
D. Other proteins
An antibody is made of _________ polypeptide chains?
A. 1
B. 2
C. 3
D. 4
______________ of earth surface is covered with water?
A. 10%
B. 30%
C. 75%
D. 90%
Gaseous exchange in birds occurs at level of_______________?
A. Alveoli
B. Air sacs
C. Bronchi
D. Parabronchi
Animals of which class of arthropoda are present everywhere_____________?
A. Crustacean
B. Insecta
C. Arachnida
D. Myriapoda
Red to orange pigments are_____________?
A. Carotenes
B. Carotenoids
C. Xanthophylls
D. Chlorophyll
Enterobius vermicularis is commonly known as____________?
A. Flatworm
B. worm
C. Hook worm
D. Tapeworm
A. Newts
B. Varanope
C. Dipnoi
D. Hagfishes
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