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  1. In which one of the following male and female gametophytes do not have free
  2. The body cells in cockroach discharge their nitrogenous waste in the haemolymph
  3. Which one of following pairs of gases are the major cause of Greenhouse effect
  4. Generally epiderms is single layered but in certain leaves,multilayered upper
  5. The adhesive pads present in legs of cockroach are