Oxygen accounts for ____ % of totals human body mass?
A. 65%
B. 18%
C. 10%
D. 3%
Biology Mcqs
Out of 92 naturally occurring chemical elements how many are considered as bio-elements?
Out of 92 naturally occurring chemical elements how many are considered as bio-elements?
A. 6
B. 16
C. 26
D. 15
__________ is essential for the formation of hemoglobin.
__________ is essential for the formation of hemoglobin.
A. Calcium
B. Iron
C. Water
D. Carbohydrates
Blood is carried towards the heart by __________?
Blood is carried towards the heart by __________?
A. Arteries
B. Capillaries
C. Veins
D. none of these
Sythetic insulin from pork was formed by which technique?
Sythetic insulin from pork was formed by which technique?
A. Biotechnology
B. Social biological techniques
C. Parasitology
D. Both a and c
On wound __________ fight foreign particles, like bacteria?
On wound __________ fight foreign particles, like bacteria?
A. White Blood cells
B. Red Blood Cells
C. Platelets
D. Plasma
The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?
The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?
A. Molecular biologists
B. Microbiologists
C. Freshwater biologists
D. Social biologist
About __________ of the body weight of a mammal is water ?
About __________ of the body weight of a mammal is water ?
A. 60%
B. 65%
C. 70%
D. 75%
The study of fossils is called?
The study of fossils is called?
A. Environmental Biology
B. Historical biology
C. Palaeontology
D. Social biology
Which Vitamin is needed for the formation of a light-sensitive pigment in the retina.
Which Vitamin is needed for the formation of a light-sensitive pigment in the retina.
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. B complex