Kingdom Animalia

Ø This kingdom is characterised by heterotrophic eukaryotic organisms that are multicellular and their cells lack cell walls.

Ø They directly or indirectly depend on plants for food. They digest their food in an internal cavity and store food reserves as glycogen or fat. 

Ø Their mode of nutrition is holozoic – by ingestion of food.

Ø They follow a definite growth pattern and grow into adults that have a definite shape and size. 

Ø Higher forms show elaborate sensory and neuromotor mechanism. Most of them are capable of locomotion.

Ø The sexual reproduction is by copulation of male and female followed by embryological development.