Animal Kingdom is an important topic for NEET preparation. It is a vast topic and requires a lot of attention and study. Here are some very short notes on Animal Kingdom that will help you in your NEET preparation.

Classification of Animal Kingdom

The animal kingdom can be classified into two types:
1) Non-Chordates
2) Chordates

Non-Chordates can be further classified into:
1) Porifera
2) Coelenterata
3) Platyhelminthes
4) Aschelminthes
5) Annelida
6) Arthropoda
7) Mollusca
8) Echinodermata

Chordates can be further classified into:
1) Pisces
2) Amphibia
3) Reptilia
4) Aves
5) Mammalia

Characteristics of Animal Kingdom

1) Multicellular eukaryotic organisms
2) Heterotrophic in nature
3) Lack cell walls
4) Have well-defined tissues
5) Reproduce sexually
6) Have a definite symmetry
7) Show cephalization
8) Have a well-defined body cavity

Body Plan of Animals

1) Asymmetrical
2) Radial
3) Bilateral

Digestive System of Animals

1) Incomplete digestive system
2) Complete digestive system

Respiratory System of Animals

1) Skin
2) Gills
3) Lungs

Circulatory System of Animals

1) Open circulatory system
2) Closed circulatory system

Nervous System of Animals

1) Nerve net
2) Ganglionic nervous system
3) Central nervous system

Excretory System of Animals

1) Protonephridia
2) Metanephridia
3) Malpighian tubules
4) Kidneys

These very short notes on Animal Kingdom will help you in your NEET preparation. However, it is important to remember that these notes are not exhaustive and you should refer to your textbook and other study materials for a detailed understanding of the topic.