• Biology - Section 1
61. 

Most common disease of poultry in India is

A. fowl pox
B. tick fever
C. ranikhet
D. coryza

62. 

Mumps is a disease caused by

A. fungus
B. bacterium
C. virus
D. None of these

63. 

Most abundant tissues of our body are

A. muscular
B. connective
C. epithelial
D. nervous

64. 

Rain water helps to increase the ____ to some extent.

A. phosphorous contents
B. nitrogen contents
C. calcium contents
D. potash contents

65. 

Plants are killed in winter by frost

A. because of desiccation and mechanical damage to the tissues
B. because no photosynthesis takes place at such low temperature
C. because respiration ceases at such low temperature
D. because there is no transpiration