Some stars are so far away that the light hasn’t which earth yet 1 million years in the future with the sources of light we see when we look up at night with the same why or why not

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

18. which statement about cancer is true?

Which of the following explains why a tree is often used as a model to represent the principle of common descent