Which of the following statements about nephrons is true? (1 point) Responses When they are damaged, they are not replaced. When they are damaged, they are not replaced. They are considered part of the nervous system. They are considered part of the nervous system. They are categorized as “left” or “right.” They are categorized as “left” or “right.” They play a major role in human reproduction.

When they are damaged, they are not replaced.