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MCQs

Total Questions : 297 | Page 7 of 30 pages
Question 61. The organisms which do not prepare their own food and depend on the dead organisms are called_____________________?
  1.    Saprophytes
  2.    Parasites
  3.    Obligatory parasites
  4.    Bacteria
 Discuss Question
Answer: Option B. -> Parasites
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 62. There has been emphasis on the conservation of wild relatives of cultivated plants because wild plants________________?
  1.    Grow better then cultivated plants
  2.    Serve, as valuable fodder plants
  3.    Needed to understand the origin of cu;cultivated plants
  4.    Carrying many useful genes which are lost in cultivated plants
 Discuss Question
Answer: Option D. -> Carrying many useful genes which are lost in cultivated plants
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 63. Yield losses of rice crop due to weed infestation are___________________?
  1.    10-20%
  2.    5-15%
  3.    20-50%
  4.    20-60%
 Discuss Question
Answer: Option D. -> 20-60%
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 64. When crop plants adopt to a new environment are called___________________?
  1.    Accaumatization
  2.    Domestication
  3.    Selection
  4.    Introduction
 Discuss Question
Answer: Option A. -> Accaumatization
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 65. Dwarf varieties of wheat are more resistance to_______________?
  1.    Disease
  2.    Insect pest
  3.    Lodging
  4.    Viruses
 Discuss Question
Answer: Option C. -> Lodging
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 66. Plants which change from the vegetative to the reproductive stage by producing flowers and fruits when the day become longer is called________________?
  1.    Long day plants
  2.    Short day plants
  3.    Photoperiod
  4.    Phototropism
 Discuss Question
Answer: Option A. -> Long day plants
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 67. The cotton plant sheds more fruits mainly due to_________________?
  1.    More number of irrigations
  2.    Higher temperature
  3.    Higher dose of fertilizer
  4.    Insects and pest
 Discuss Question
Answer: Option B. -> Higher temperature
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 68. The process of converting food nutrients to carbohydrates in plants is called________________?
  1.    Metabolism
  2.    Photosynthesis
  3.    Absorption
  4.    Assimilation
 Discuss Question
Answer: Option B. -> Photosynthesis
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 69. Wheat is predominantly________________?
  1.    Self pollinated crop
  2.    Often cross pollinated crop
  3.    Cross pollinated crop
  4.    Apomictie crop
 Discuss Question
Answer: Option A. -> Self pollinated crop
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 70. Growing more then one crop in a season in the same land is called________________?
  1.    Monocropping
  2.    Double cropping
  3.    Intensive cropping
  4.    Intercropping
 Discuss Question
Answer: Option C. -> Intensive cropping
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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