Biology - Questions (Section-1)
61Most abundant tissues of our body are
A. muscularB. connective
C. epithelial D. nervous
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62Most common disease of poultry in India is
A. fowl poxB. tick fever
C. ranikhet D. coryza
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63Mumps is a disease caused by
A. fungusB. bacterium
C. virus D. None of these
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64Number of chromosomes in Down's syndrome is
A. 46B. 47
C. 48 D. 49
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65Plants are killed in winter by frost
A. because of desiccation and mechanical damage to the tissuesB. because no photosynthesis takes place at such low temperature
C. because respiration ceases at such low temperature D. because there is no transpiration
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66Rain water helps to increase the ____ to some extent.
A. phosphorous contentsB. nitrogen contents
C. calcium contents D. potash contents
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