Write TRUE if the statement is correct and FALSE I not correct.
21. The heart plays a role in digestion, as well as homone production Hormones
produced by the pancreas include insulin and glucagon, which regulate levels
of blood sugar
22. The endocrine system can change the activity of many of the organ systems in
the body
23. Endocrine and nervous systems work together to send messages to organs and
other parts of the body.
24. The respiratory and circulatory system work together to provide your cells with
oxygen and get rid of gaseous waste products like carbon dioxide
25. Our respiratory system relies on our urinary system to remove waste produced by
bone cells: in return, the bones of our skeleton create structure that protects
the bladder and other urinary system organs.​