How would you describe the differences between external respiration and cellular respiration?

External respiration is a mechanical process of breathing in and out i.e transfer of oxygen into the lungs and carbon dioxide out of the body while cellular respiration is a chemical process in which glucose that is obtained  from food interacts with oxygen at cellular level to produce energy in the body.

You should never redesign your experiment. try and see what in your experiment you made a mistake on or try and test your experimemt with somebody else. see if they get the right results.

False because when you are going on any water activities it is good to know if the water has any recreational illnesses its false on edgenuity also