Question

What do the digestive, respiratory, circulatory, and excretory systems have in common?

Answer 1

they all help your body and are systems in your body. :))

Answer 2

your brain is telling the systems to work together and your heart lets blood pump through your body and it helps ur muscles and all the other systems move around


go on youtube and check out the respatory system rap
song and study all the words and I am sure that will help
u pass the test


hope this helped


John3:16 says:
for god so loves the world that he gave his one and only son to die on the cross an wash away our sins