Biology Mcqs

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Biology Mcqs for the preparation of NTS, PPSC, SPSC, BPSC, KPSC, FPSC, OTS and other academic entry test and jobs tests.

 

46. Respiration of plants is through
(a) Arriers
(b) Gills
(c) Trachea
(d) Stomata

 

47. Which of the following pairs has open type of circulatory system
(a) Cockroach and Silverfish
(b) Man and Whale
(c) Earthworm and Leech
(d) Tadpole larva and Fish

 

48. The outermost layer of skin is known as
(a) Epidermis
(b) Epiglottis
(c) Ligament
(d) Cartilage

 

49. Nuclear membrane is absent in
(a) Prokaryotes
(b) Eukaryotes
(c) Protozoan
(d) All of them

 

50. The cell that lacks a nucleus is
(a) Flame cell
(b) Spermatozoan
(c) Red blood cell of man
(d) White blood cell

 

51. How many ribs does a human have
(a) 22
(b) 24
(c) 26
(d) 28

 

52. Which of the following is known as “graveyard’ of Red Blood Cells
(a) Spleen
(b) Liver
(c) Bone marrow
(d) Appendix

 

53. Bacterial infections in humans can be treated with which medicine
(a) Antibiotics
(b) Mycology
(c) Photosynthesis
(d) Extinction

 

54. The shortest bone in the human body is the
(a) Vertebrae
(b) Stapes
(c) Phalange
(d) Metacarpal

 

55. Which of the following prays an important part in photosynthesis
(a) Chloroplast
(b) Centrosome
(c) Tonoplast
(d) Nematoblast

 

56. Which is the longest cell
(a) Red Blood cell
(b) Monocyte
(c) Lymphocyte
(d) Nerve cell

 

57. Which of the following plant eat insects
(a) Urn plant
(b) Pitcher plant
(c) Cacti
(d) Ribbon plant

 

58. Human blood contains____ percentage of plasma
(a) 35%
(b) 40%
(c) 50%
(d) 65%

 

59. The endocrine system chemically controls the various functions of cells, tissues, and organs through the secretion of
(a) Enzymes
(b) Lipids
(c) Hormones
(d) Vitamins

 

60. The union of a sperm and an egg is called
(a) Reduction
(b) Meiosis
(c) Fertilization
(d) Germination

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