what is the difference between natural selection and survival of the fittest? a. one is about plants and the other animals; b. natural selection is a negative happening and survival of the fittest is positive; c. they are the opposite of each other; or d. they are the same.

d. they are the same.

Natural selection and survival of the fittest are often used interchangeably to describe the process by which organisms best adapted to their environment are more likely to survive and reproduce successfully. This leads to the passing on of beneficial traits to future generations. Both concepts are fundamental to the theory of evolution proposed by Charles Darwin.