Class XI

 Pulling hand away from hot iron is an example of
  1. Effective nervous system
  2. Reflex action
  3. Voluntary actions
  4. Involuntary actions
To keep heart running
  1. energy is required
  2. no energy is required
  3. heart beat occurs automatically
  4. depends on asleep or awake
 Narrow tolerance of oxygen (O2) is found in
  1. humans
  2. plants
  3. mammals
  4. fish
In sage, chances of self pollination are reduced due to fact that
  1. plant has unisexual flowers
  2. stigmas do not receive pollens from same flowers
  3. distance between stigma and anther is more
  4. plant only contains stigma in some flowers
On boiling with Benedict solution, reducing sugar will form a precipitate of
  1. Green color
  2. Red color
  3. Blue-black color
  4. Violet color
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