51. Which of the following is known as ‘graveyard of RBCs?
(a) Spleen
(b) Liver
(c) Bone marrow
(d) Appendix

 

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

 

53. Which one of the following is responsible for converting milk into curd?
(a) Virus
(b) Yeast
(c) Fungi
(d) Bacteria

 

54. In how many groups can human blood be divided?
(a) 4
(b) 5
(c) 2
(d) 3

 

55. Antibodies are?
(a) Carbohydrates
(b) Enzymes
(c) Proteins
(d) Hormones

 

56. ‘Cod’ is a variety of
(a) Amphibia
(b) Crop
(c) Coral
(d) Fish

 

57. The thin layer that forms a common layer for any two cells is
(a) Middle lamella
(b) Secondary wall
(c) Primary wall
(d) None of the above

 

58. The poison of honey bee is –
(a) Saltish
(b) Acidic
(c) Protein
(d) Alkaline

 

59. Birds which swim in water have –
(a) Broad wings
(b) Long beaks
(c) Toes with claws
(d) Webbed feet

 

60. What is the average weight of Male’s brain?
(a) 46 ounce
(b) 48 ounce
(c) 47 ounce
(d) 49 ounce