Class IX

Large gene pool enables
  1. conservation of natural resources
  2. depletion of natural resources
  3. conservation of artificial resources
  4. depletion of artificial resources
Motor end plate is formed
  1. at junction of two neurons
  2. when end branch of an axon touches Dendron
  3. when end branch of an axon touches an effector
  4. when synapse is busy in other tasks
Pyrethrum is used in
  1. insecticides
  2. quinine
  3. morphine
  4. antibiotics
Through enzyme pepsin, proteins can be changed to
  1. polypeptides
  2. cellulose
  3. amino acids
  4. fatty acids
Excess mucus is produced causing smokers cough due to
  1. nicotine
  2. Tar
  3. Irritants
  4. morphine
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