According to the evolutionary theory, the formation of a new species is generally due to
a)sudden creation by nature

b)accumulation of variations over several generations

c)clones formed during asexual reproduction

d)movement of individuals from one habitat to another
According to the evolutionary theory, the formation of a new species is generally due to
a)sudden creation by nature

b)accumulation of variations over several generations

c)clones formed during asexual reproduction

d)movement of individuals from one habitat to another

Solution: Several generations of DNA variation result in the formation of new species. Since there are no gametes involved in asexual reproduction, there will be no variety. Individual movement from one environment to another has little effect on DNA modification, hence it cannot be the best solution. So, the  correct answer is (b) accumulation of variations over several generations