Is the whole theory of evolution based on natural selection?

A. Darwinian evolution is predicated on the idea that everything occurs solely through natural causes, in addition to natural selection.

B. The observation that organisms have many more offspring than the environment can support is the foundation of Darwinian evolution; as a result, some will survive and some will not.

C. The theory of natural selection postulates that only those progeny that are best adapted to their surroundings will be allowed to procreate and bear further children.

D. The theory of descent with modification, which holds that all life began with a single cell and has infinite potential for variation, is put forth by Darwinian evolution.

E. The uniformtarism theory of Hutton and Lyell in geology, which holds that the present is the key to the past and that what is observed today was created by very slow processes over very long periods of time, is the foundation of Darwinian evolution.

The theory of natural selection is based on a number of observations and presumptions and aims to explain how life could have evolved from a single cell to what is observed today through natural causes.

The emergence of new life forms cannot be explained by natural selection; only the extinction of existing life forms can.

No, natural selection is not the only mechanism that underpins the theory of evolution; genetic drift, gene flow, and mutation are just a few examples.