Class XI

Blood is called blood tissue due to presence of
  1. blood cells
  2. platelets
  3. antibodies
  4. both A and B
Self regulatory mechanism and negative feedback cannot initiate in absence of
  1. appropriate body temperature
  2. biosensors
  3. receptors
  4. bacteria and virus
 Function of spinal nerves is to
  1. transmit impulses from receptors to motor neurons
  2. transmit impulses from receptors to forebrain
  3. transmit impulses from receptors to spinal cord
  4. catch any stimulus
 75 to 90 mm of mercury is an adults normal
  1. systolic pressure
  2. diastolic pressure
  3. peristalsis pressure
  4. water pressure
Friends teasing that non-smoker is not sporting enough and lively turns into
  1. teasing pressure
  2. community-pressure
  3. moral-pressure
  4. peer group pressure
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