Examples of range of variations observed in daily life are :

Organisms vary greatly in size-from microscopic bacteria to elephants, whales and large trees. 

The colour of various animals is quite different. Some worms are even colourless or transparent. Various types of pigments are found in plants.

The life span of different organisms is also quite varied. For example, a crow lives for only $15$ years, whereas a parrot lives for about $140$ years.