Class IX

Root pressure is enhanced as
  1. Root pressure is enhanced as
  2. cells around xylem are low in salts and amino acids
  3. more water is available for plant
  4. a concentration gradient makes osmosis happen at greater speed
Bone marrow produces
  1. red blood cells
  2. white blood cells
  3. platelets
  4. antibodies
Structural component of hemoglobin is
  1. Structural component of hemoglobin is
  2. zinc
  3. thiamine deficiency
  4. chorine
Amylase becomes denatured at a alkaline pH of
  1. 6
  2. 7
  3. 4
  4. 9
Thyroxin is secreted from
  1. thiamine deficiency
  2. theological inheritance
  3. thyroid glands
  4. muscles used for breathing
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LKG - 12th

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