Tag Archives: Respiratory System

Fish and their Respiratory System

A mouthful of water is taken in and the fish closes its mouth. At the same [...]

Cutaneous Respiration

Worms breathe in oxygen and breathe out carbon dioxide. But they don’t have lungs or [...]


Chlorophyll is a green pigment that has been Built into leaves and stems. It is [...]

Avian Respiratory System

Birds do not have a diaphragm and bird lungs do not expand or contract like [...]