Class IX

In mammals, catalase is common in
  1. liver
  2. blood
  3. pancreas
  4. both A and B
Oxygenated blood
  1. leaves from left side of heart
  2. leaves from right side of heart
  3. does not leave lungs
  4. enters lungs from heart
Biology enables us to carry out comparative study between
  1. Humans and animals
  2. Humans and universe
  3. Humans and minerals
  4. Living things and non-living things
Terminal branches of axon are known as
  1. synapse
  2. myelin sheath
  3. dendrites
  4. dendrons
Active transport refers to
  1. fulfilling plant deficiencies
  2. supporting active translocation
  3. flow of substances from lesser to more concentrated zones
  4. flow of substances from lesser concentrated to more concentrated zones
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