Organisms of a species of fern have both a multicellular haploid and a multicellular diploid phase. This is an example of

This  focuses on  the entrepreneurial leadership of these  growth  firms.   governmentministers can play a critical  role  in  fostering  enterprise and innovation. their  role  is to direct thegovernment  departments and agencies to  focus  on the problem and develop effective policies.

4) repetitive change