Sometimes the respiratory system and the cardiovascular system (the heart and blood vessels) are grouped as one system called the cardiopulmonary system. How would the “regrouping” of two systems affect the components, boundaries, and processes of the new, larger system?

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

and after water is usually warmed by the sun the water temperature raises and then evaporates .