Question

All he variation in the species do not have equal chance of survival ?Why

Answer 1

It is true that all variations and mutations in species will not have equal chances to survive in the environment. According to 'Survival of the fittest', only the specieswhich can adapt themselves to the environment can survive. Selection of the variants occurs by the different environmental factors.

Answer 2

All variations in a species do not have equal chances of survival. Some of the variations may be so drastic that the new DNA copy cannot work with the cellular apparatus it inherits. ... In asexual reproduction, there is minimum variation that is due to small errors in DNA copy.