circulatory system
Heart
The main organ of the blood transport system in a mammal is the heart.
Both have the cellular respiration
circulatory system does.
You have to talk about the differences and similarities they have in common in the transport system.
Dogs have the same organ systems as humans.
Circulatory system
Circulatory & respiratory system
Which organ system IN human is most directly involved in the transport of oxygen?(1)digestion (2)nervous(3)excretory(4)circulatory
digestive
pulmonary - lungs -- circulatory helps transport as well.
pulmonary - lungs -- circulatory helps transport as well.