The exchange surfaces are moist.
Gas exchange
Working together, the respiratory and circulatory systems perform gas exchange from the blood to the lungs. This exchange occurs at the alveoli.
Insects.
All plants, animals, fish etc, need gas from the air to breathe. Whether it be carbon dioxide, oxygen from water or our atmosphere, its pretty much a given.
Because of their complex organs, circularitory systems, nervous systems, and gas exchange systems.
Gases must first dissolve in a fluid in order to diffuse across a membrane. All gas exchange systems require a moist environment.
it occurs through the heart
They are gas giants with ring systems.
to maintain proper metabolism, mainly gas exchange
It does not exchange matter.
its not the same. reo done a turtel head...LOL!!
HEAT