A research team wanted to produce a smaller variety of German shepherd dogs. They mated the smallest dogs from different litters for several generations. This is an example of which concept?
extinction mutation selective breeding natural selection
Question: A research team wanted to produce a smaller variety of German shepherd dogs. They mated the smallest dogs from different litters for several generations. This is an example of which concept?
A. extinction
B. mutation
C. selective breeding
D. natural selection
Answer: