Biology Questions and Answers for Competitive Exam

Selective Biology Questions and Answers:

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41. The camel‟s hump is composed of a tissue that provides water when oxidized

(a) Skeletal

(b) Areolar

(c) Muscular

(d) Adipose

42. The white fibrous tissue occurs in

(a) Ligaments

(b) Cartilage

(c) Tendons

(d) Bone

43. Ligaments are made up of

(a) White fibers and some yellow elastic fibers

(b) White fibers only

(c) Yellow fibers only

(d) Yellow fibers and muscle fibers

44. The major constituent of vertebrate bone is

(a) Calcium phosphate

(b) Potassium hydroxide

(c) Sodium chloride

(d) Calcium carbonate

45. A bone left in dilute HCI for about three days will

(a) Crack into pieces

(b) Become soft and elastic

(c) Dissolve completely

(d) Remain as it is

46. Haversian system is typically found in bones of

(a) Fishes

(b) Ayes

(c) Reptiles

(d) Mammals

47. The bone of a mammal contains Haversian canals, which are connected by transverse canals

known as

(a) Semicircular canals

(b) Inguinal canals

(c) Volkmann‟s canals

(d) Bidder‟s canals

48. Blood is

(a) Acidic

(b) Alkaline

(c) Variable

(d) Neutral

49. Mammalian erythrocytes are

(a) circular

(b) Biconcave

(c) Non-nucleated

(d) All the above

50. Life span of RBC is

(a) 50 days

(b) 75 days

(c) 120 days

(d) 100 days

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