Question

Darwin proposed that new species evolve from ancestral forms by _______________________.

• A. Gradual accumulation of adaptions to changing environment
• B. Struggle for limited resources
• C. Accumulation of mutations
• D. Inheritance of acquired adaptations to environment

Answer 1

The correct option is A Gradual accumulation of adaptions to changing environment

Environmental conditions never are constant. They often get changed and these changes usually become unsuitable for the organisms to survive.

So, for survival in this changed environmental conditions, organisms show adaptations and these adaptations create reproductive isolations and organisms which start as the same species get divided into two or more different species.

So, the correct answer is option A.