MCQs is one of the best ways to test a student’s comprehension of a concept. Academic Task subject experts have prepared these Biology MCQs based on current trends and practices. Furthermore, the questions present in this section will be beneficial for competitive examinations and tests (PPSC Test, FPSC Test, SPSC Test, KPPSC Test, BPSC Test, Etea Test) as well. The content is updated regularly, with the addition of new topics, more questions, and useful links. The given Biology MCQs section covers all topic like Basic Biology MCQs for Entry Test, MCQ on Cell Signaling, MCQ on Mollusca, MCQ on Mollusca, MCQ on Respiratory System, MCQ on Nutrition in Plants, MCQ on Vitamins, MCQ on Plant Tissue Culture, MCQ on Bioinformatics, MCQ on Food Microbiology, MCQ on Food Microbiology, Human Health and Disease, Genetics, etc.

31. __________ is essential for the formation of hemoglobin.

A. Calcium
B. Iron
C. Water
D. Carbohydrates

32. Out of 92 naturally occurring chemical elements how many are considered as bio-elements?

A. 6
B. 16
C. 26
D. 15

33. ___________ are needed as a source of energy for the vital activities of the body?

A. Calcium
B. Iron
C. Water
D. Carbohydrates

34. Oxygen accounts for ____ % of totals human body mass?

A. 65%
B. 18%
C. 10%
D. 3%

35. The atoms of different elements combine with each other through ionic or covalent bonding to produce compounds this stable form is called:

A. An organ
B. A molecule
C. Tissue
D. Both a and c

36. 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

37. On wound __________ fight foreign particles, like bacteria?

A. White Blood cells
B. Red Blood Cells
C. Platelets
D. Plasma

38. Synesthetic insulin from pork was formed by which technique?

A. Biotechnology
B. Social biological techniques
C. Parasitology
D. Both a and c

39. Blood is carried towards the heart by __________?

A. Arteries
B. Capillaries
C. Veins
D. none of these

40. The branch of biology which deals with the study of social behavior and communal life of human beings living in any environment is called ?

A. Environmental biology
B. Social biology
C. Human biology
D. Both b and c

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