Yes, worms do need air to survive, just like many other living organisms. While worms are often associated with living in soil, they are not entirely subterranean creatures. They require access to oxygen for respiration, which is the process of converting oxygen into energy for their bodily functions.
Worms have a unique respiratory system compared to many other animals. Instead of lungs, they have a network of tiny, thin-walled blood vessels called capillaries, which are located just beneath their skin. These capillaries allow for the direct exchange of gases between the worm’s body and the environment. Oxygen diffuses directly into the capillaries, and carbon dioxide diffuses out, facilitating respiration.
To ensure they have access to oxygen, worms often move to the surface of the soil, especially after a rainfall when the soil is saturated with water. They may also create small channels or burrows to reach the surface and access fresh air. This behavior is particularly noticeable in earthworms, which are known for their role in aerating and improving soil quality.In summary, worms rely on oxygen for respiration and, therefore, require access to air to survive and carry out their vital bodily functions.