What is a function of the cardiorespiratory system?
a. transport and exchange gases(o2 and co2)
b. provides support and protection of the soft tissues that make up the rest of the body
c. cleans up leaked fluids and plays a role in protecting you from infections
d. all of the above

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b