Which of the following statements best describes the effects of natural selection?
A. Species are eliminated, or “selected,” one-by-one over thousands of years, and no new species are developed.
B. Species change little by little with each generation, and over a long period of time they can develop into new species.
C. New species are naturally developed only every 2,000 years, and all previously existing species die out.
D. Species change over short periods of time, and this change occurs roughly every 1,000 years.
Answer:B
Which of the following statements best describes the effects of natural selection?
A. Species are eliminated, or “selected,” one-by-one over thousands of years, and no new species are developed. B. Species change little by little with each generation, and over a long period of time they can develop into new species. C. New species are naturally developed only every 2,000 years, and all previously existing species die out. D. Species change over short periods of time, and this change occurs roughly every 1,000 years.