Match the following:
A-III, B-I, C-IV, D-II
Assertion [A]: The species that invade a bare area are pioneer species
Reason [R]: In primary succession, lichens or Phytoplanktons invade rocks and water respectively
Match the following:
A mother plant having 16 chromosomes produced ovules and underwent megasporogenesis, then the ploidy of the nucleus of A, B, C, D is: