The environment of an organism includes

  • A
    Atmosphere and biosphere
  • B
    Hydrosphere and lithosphere
  • C
    Atmoshpere and hydrosphere
  • D
    Atmosphere, hydrosphere, lithosphere and biosphere

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$A$ : Lycaenops is a connecting link between reptiles and mammals.
$R$ : In permian period there was origin of mammal like reptiles.

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