What is Survival of the Fittest?
Survival of the fittest is the name given to the pricess of mass extinction to hasbitats when an earth related factor changes and organisms must adapt to these factors to survive.
How is "Survival of The Fittest different to "Natural Selection"?
Natural Selection is a natural process which is unstoppable unless organisms stop the mating process whereas Survival of the Fittest is depended on the ability to adapt to changes in the enviroment surrounding them.