What is one chemical reaction that takes place in all living things?

A Photosynthesis

Breaking down food to use for energy

In the reading, yao chen-yuan describes traveling to deliver a message. why was he willing to risk danger to travelto tientsin? he wanted to the boxers with their cause

What must happen before a body cell can begin mitotic cell division

Ineed ! i have no clue how to do this problem.