Feathers

It is the presence of feathers that is unique to birds. Other animals can fly, other vertebrate animals have beaks or bills, other vertebrate animals lay eggs, but no other living animal has feathers. Feathers are highly modified scales. There are different types of feathers that have different uses. Feathers are used for: Flight– flight […]

Leaves

The leaves of a plant are thought of as the photosynthetic factories or food-producing organs of the plant. They are the major areas of photosynthesis and respiration. The blade is the usually broad, flat portion of the leaf where most photosynthesis and respiration take place. Other plant tissues can be photosynthetic, as well, but the […]