In what way does the theory of descent with modification dif

In what way does the theory of descent with modification differ from the theory of evolution by natural selection? (2 marks)

Organisms can evolve even if natural selection is not responsible for the changes that occur.

Descent with modification applies only to large animals and plants and not to smaller organisms, like bacteria and protozoans.

The theory of descent with modification is designed to explain why organisms have evolved adaptations whereas natural selection explains why organisms can persist unchanged over long period of evolutionary time.

Descent with modification provides an account of the evolutionary events that took place as a modern species evolved from ancestral ones; natural selection theory provides a means for why some changes spread through a species while others did not.

Solution

Theory of descent with modification postulates that all organisms have descended from common ancestors by a continuous process of branching.the theory of descent with modification simply states that more recent forms results from modification of earlier forms.According to Darwin\'s descent with modification,organisms give rise to similar organisms.
Natural selection generally is defined independently of whether or not there is actually an effect on the gene-frequency of a population.It is limited to the selection process itself, whereby individuals in a population experience differential survival and reproduction based on a particular phenotypic variations.According to Darwin\'s theory of natural selection,organisms that have more favourable traits tend to leave more offspring.
The difference between natural selection and descent with modification is that natural selection does not appear to create variation or give rise to new genetic traits.Natural selection works with the genetic mix already in the population.

fourth option is correct