Final answer:
Artificial selection occurs when humans select which plants or animals to breed in order to pass on specific traits to the next generation, and it is similar to natural selection with human intervention. Artificial selection selects which traits (good or bad) are passed on to the next generation.
Step-by-step explanation:
Artificial selection occurs when humans select which plants or animals to breed in order to pass on specific traits to the next generation. For example, a farmer may choose to breed only cows that produce the best milk. Farmers would also avoid breeding cows that produce less milk. In this way, selective breeding of the cows would increase milk quality and quantity.
Artificial selection is similar to natural selection, but with human intervention. In natural selection, the environment selects the most adapted individuals to pass on their traits. However, in artificial selection, humans are the ones selecting which traits are passed on.
Therefore, the statement that best describes how artificial selection can decrease a population's biodiversity is: Artificial selection selects which traits (good or bad) are passed on to the next generation.