Earthworms need oxygen, just like other living creatures. They don't have lungs. They breath through their skin. Like frog breaths in water. Their respiration process occur through diffusion (transfer of atoms from higher to lower concentration).
Worms do not theoretically breath as they have no lungs. However, the skin remains moist so as to absorb oxygen from the air through tiny pores in their skin.
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.
They exchange rings.
perfusion
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
it farts
yes
lower exchange rate,takes longer for gases to diffuse