Biology · Evolution

Darwin's theory of evolution rests on three main points: 'Descent with Modification,' which refers to the passing on of traits from parent to offspring with changes over generations; 'Natural Selection,' which is the process by which certain traits become more common in a population due to their advantage in survival and reproduction; and 'Adaptation,' which is the process by which species become better suited to their environment. Other options mention related concepts but miss one or more of these key points.

This option is incorrect because while 'Origin of Species' is a related concept, it is not one of the main points of Darwin's theory. The correct main points are 'Descent with Modification,' 'Natural Selection,' and 'Adaptation.'

This option is incorrect because it omits 'Descent with Modification,' which is a crucial part of Darwin's theory. The full set of main points includes 'Descent with Modification,' 'Natural Selection,' and 'Adaptation'.

This option is incorrect because 'struggle for existence' is a process related to natural selection but not a main point. The main points are 'Descent with Modification,' 'Natural Selection,' and 'Adaptation.'

This option is correct, as it accurately lists the main points of Darwin's theory of evolution: 'Descent with Modification,' 'Natural Selection,' and 'Adaptation.'