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

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42. The white fibrous tissue occurs in

(a) Ligaments

(b) Cartilage

(c) Tendons

(d) Bone

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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

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44. The major constituent of vertebrate bone is

(a) Calcium phosphate

(b) Potassium hydroxide

(c) Sodium chloride

(d) Calcium carbonate

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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

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46. Haversian system is typically found in bones of

(a) Fishes

(b) Ayes

(c) Reptiles

(d) Mammals

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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

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48. Blood is

(a) Acidic

(b) Alkaline

(c) Variable

(d) Neutral

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49. Mammalian erythrocytes are

(a) circular

(b) Biconcave

(c) Non-nucleated

(d) All the above

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50. Life span of RBC is

(a) 50 days

(b) 75 days

(c) 120 days

(d) 100 days

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