Because their bodies operate in two different ways. The grasshopper has a different body structure and parts than the earthworm.
By diffusion through the skin.
It has special skin that allows it to exchange
This is because the earthworm takes in oxygen through its skin and releases CO2 through it's skin as well using diffusion
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.
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