Four stages of mitotic cell division are shown in the diagram. ( see screenshot below ) in which stage do the chromatids get separated and move toward opposite ends of the cell? a) p b) q c) r d) s

The correct answer is C.  The separation of chromatids happens during Anaphase, which is represented by R in the diagram.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.