Practice MCQ Questions and answers on Biology-GK

A. Transport of CO₂

B. Transport of oxygen

C. To produce immune system of body

D. None of the above

A. 120 days

B. 99 days

C. 101 days

D. 111 days

A. Erythrocytes

B. Leucocytes

C. Thrombocytes

D. Esinophils

A. A

B. B

C. AB

D. O

A. 80/120

B. 120/80

C. 80/110

D. 110/90

A. W.B.Cs

B. Platelets

C. R.B.Cs

D. All of the above

A. Liver

B. Bone marrow

C. Pancreas

D. Spleen

A. Their walls are covered with cilia

B. They warm and humidify inhaled air

C. Their walls are only one cell thick

D. They move mucus through the lungs

A. Antibodies

B. Antigens

C. Antitoxin

D. Enzymes

A. O+

B. O-

C. AB-

D. AB+