The "water-vascular" system uses ocean currents to move water throughout their body, and the starfish use their gills to take oxygen from that water as it circulates.
In the lungs, exchange of gases occurs in the alveoli(sing: alveolus).
During the stage of photosynthesis, the exchange of gases occur in the leaves.
Light is necessary for the exchange of gases in plants.æ Light is what instigates photosynthesis and without photosythesis there can be no gas exchange.
the blood vessel which allows gas exchange to occur is the capillaries
The actual exchange of gases occurs in the alveoli
YES
by mating
yes
it farts
Octopuses have gills which exchange carbon dioxide for oxygen in the water.
lower exchange rate,takes longer for gases to diffuse
The heart is not where gases are exchanged. This occurs in the lungs.