Marek is trying to push a box of sports equipment across the floor. The arrow on the box is a vector showing the force Marek exerts. 1. Describe all the forces acting on the box.
2.Explain what needs to happen for the box to start moving.

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.