Class IX

From medulla oblongata to end of vertebral column is
  1. digestive system
  2. respiratory system
  3. spinal cord
  4. all of these
Antibodies are produced commercially by mixing a lymphocyte with
  1. a bacteria
  2. a fungus
  3. a tumor cell
  4. a tumor cell
Vitamins can be
  1. fat-soluble
  2. water-soluble
  3. sugar-soluble
  4. both A and B
For optimal growth of fungus, process shall be
  1. anaerobic
  2. aerobic
  3. oxygen supply should be cut off after some time
  4. oxygen should not be supplied since beginning
From medulla oblongata to end of vertebral column is
  1. digestive system
  2. respiratory system
  3. spinal cord
  4. all of these
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