LIFE SCIENCE

Detailed explanation-1: -survival of the fittest, term made famous in the fifth edition (published in 1869) of On the Origin of Species by British naturalist Charles Darwin, which suggested that organisms best adjusted to their environment are the most successful in surviving and reproducing.

Detailed explanation-2: -The Principles of Biology by Herbert Spencer (1864) looked at biology in terms of themes, such as Function, Adaptation and Variation. In this book Spencer introduced the expression ‘survival of the fittest’, in the sense of ‘the most appropriate to its environment’.

Detailed explanation-3: -Darwinian Theory, sometimes referred to as “the survival of the fittest, ‘’ suggests that some organisms were able to adapt better to their environment than others. The ones that adapted better were the ones that survived and produced the most offspring.

Detailed explanation-4: -Natural selection, also known as “survival of the fittest, ‘’ is the more prolific reproduction of individuals with favorable traits that survive environmental change because of those traits. This leads to evolutionary change, the trait becoming predominant within a population.