When the cells of a tumor undergo malfunctions that allow them to spread throughout the body, the tumor is considered a benign tumor.

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Astudent is looking through a microscope at some cells of an onion root tip. many of these cells are undergoing division since the root tip grows quickly and requires more cells. which cell most recently underwent metaphase? w x y z

Which blood cell spend most of their time in the lymphatic system?