That a certain animal will have a mutation and if the mutation is more successful then the original then mutation will live if not, then the mutation will die out and also if you split a group of animals up and have say a rat species from Europe and introduce them to a cold climate or an island like Madagascar then they may evolve to better survive in their environment
Charles Darwin
Charles Darwin used his concept of density dependent factors in his theory of evolution by formulating a scientific argument by use of natural selection. His demonstrations showed how natural selection is the only possible link between adaptation and evolution.
Gradualism is the concept but I would not give it the ranking of scientific theory. It is more a subset of the theory of evolution by natural selection and was first formulated into that theory by Darwin.
I study evolution because it is the concept that underlies all of biology. Biology would still be natural history without the fact of evolution and the theory of evolution by natural selection is the overarching theory that underpins all of biology while explaining much about the fact of evolution. " Nothing in biology makes sense, except in the light of evolution. " Dobzansky.
No
Genetic variations are produced by mutations and sexual recombination
" Translated " is not the correct word. The concept is called social Darwinism and has little to do with the theory of evolution by natural selection because it is not about the natural struggle for existence of individual organisms, but about how societies compete. This is not an evolutionary concept. Herbert Spenser devised this concept and Darwin did not have anything to do with it and really did not approve of the concept's tenets.
Charles Darwin
Charles Darwin
Evolution or natural selection.
Natural selection explains adaptive change in the immediate environment.
Charles Darwin used his concept of density dependent factors in his theory of evolution by formulating a scientific argument by use of natural selection. His demonstrations showed how natural selection is the only possible link between adaptation and evolution.
Survival of the fittest would be used to describe this situation.
New generations are better suited to survive than previous generations.
Evolution is an observed and observable fact. The theory of evolution by natural selection explains many things about evolution. The theory generates testable hypothesis, as any good theory does. Remember, theory is the highest concept in science.
Without genetic diversity, natural selection cannot occur
Survival of the fittest would be used to describe this situation.