Cho điểm sáng s nằm trước gương phẳng và cách gương 25 cm. Dịch chuyển điểm sáng s tưới vị trí sao cho ss'lúc này tăng thêm 10cm so với ban đầu

In 1859, charles darwin published the first edition of on the origin of species, which explained his observations of various groups of animals that showed great similarities but minor differences. darwin concluded that if a population of one species separates into two different populations that live in separate locations, then over the course of many generations the different populations can develop into different species. this idea predicted many future biological findings and became the basis of modern biology. darwin’s explanation for why different species exist is best described as a(n) law. theory. inquiry. hypothesis.