Which statement about natural selection is true?

A. Natural selection is incapable of creating perfect organisms; artificial selection is the only way that perfect organisms can evolve.

B. Natural selection never "weeds out" traits that confer poor reproductive success.

C. Environments can change more quickly than natural selection can adapt organisms in a population.

D. Natural selection moves individual organisms toward perfection.

E. Natural selection moves populations of organisms toward perfection.

Answer: Option A. Natural selection is incapable of creating perfect organisms; artificial selection is the only way that perfect organisms can evolve.

Explanation: Natural selection and selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but artificial selection or selective breeding only occurs when humans intervene. Natural selection is not all-powerful; it does not produce perfection. If your genes are "good enough," you'll get some offspring into the next generation - you don't have to be perfect. Artificial selection is the only way that perfect organisms can evolve.

Farmers and breeders allowed only the animals with desirable characteristics to reproduce, causing the evolution of farm stock. This process is called artificial selection because people (instead of nature) select which organisms get to reproduce.