(A) Iron
(B) Phosphorus
(C) Magnesium
(D) Calcium
Answer: (B) Phosphorus
Category: Biology MCQs
Percentage of oxygen element in the human body is:
(A) 65%
(B) 18%
(C) 10%
(D) 50%
Answer: (A) 65%
The substance change pepsinogen into its active form pepsin by the help of:
(A) Trypsin
(B) Mucous
(C) HCL
(D) Gastrin
Answer: (C) HCL
Left ventricle contracts and pumps blood into the:
(A) Pulmonary artery
(B) Pulmonary vein
(C) Aorta
(D) Superior vena cava
Answer: (C) Aorta
Which of the following statement is TRUE for blood group A?
(A) It has antibody A
(B) It has antibody B
(C) It has antigen B
(D) It can donate blood to O group
Answer: (B) It has antibody B