Question

Name the Class, Order, Family and Genus Of:-
1. Phylum Coelenterata
2. Phylum Platyhelminthes
3. Phylum Nematoda
4.Phylum Annelida
5.Phylum Arthropoda
6.Phylum Mollusca
7.Phylum Echinodermata
8.Phylum Protochordata
9.Phylum Vertebrata
10. Phylum Cyclostomata

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Biology > Diversity in Living Organisms > Animal Kingdom

Diversity in Living Organisms

Animal Kingdom

Scientists predict that only 15% of species are known to man from the estimated 8.7 million species. That leaves almost 85% species yet to be discovered. Only about 953,434 species of animals have been catalogued in the Animal Kingdom. Let us study this classification of animals.

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Classification of Animals and Plants

There are millions of living organisms in this world. There are some which are even yet to be discovered. These living organisms that are known to man, very broadly include animals, plants, microorganisms etc. All of them show great diversity. Yet, there are some characteristics that are similar between groups of organisms and this is what binds them together.

Classification of animals helps us to understand their characteristics, as well as their differences with other organisms. The best-known organisms are the animals. In scientific terminology, they are grouped under the Kingdom Animalia, better known as the Animal Kingdom. Let us learn more about this famous Kingdom!

Kingdom-Animalia

Animal Kingdom

Kingdom Animalia consists of organisms that range from the simplest of the animal forms to the most complex. At one end of this classification of animals, you have the microscopic organisms. And at the other end, you see animals that you probably come across in your daily life. You and your friends, for example, are members of the Animal Kingdom. Your pet dog, bird, cat or even those pesky insects that you find in the gardens are all part of this gigantic kingdom.

Scientifically speaking, all organisms that belong to this Kingdom are Eukaryotic organisms. They are all multicellular, with many cells present. The cells do not have cell walls in them. Another important feature is that they have a heterotrophic mode of nutrition, which means that they cannot make their own food.

The Different Phyla

Classification of animals is termed as Kingdom Animalia. It is further divided into different phyla. These are nothing but divisions in which animals/organisms with the same characteristics are included under them. Apart from the primary distinguishing features of the Animal Kingdom (Eukaryotic, Multicellular, without a cell wall and heterotrophic); each phylum has organisms that have common characteristics. In the classification of animals chart, they move from the simplest to the most complex.

The different phyla in the classification of animals are as follows:

Phylum Porifera

Phylum Coelenterata

Phylum Platyhelminthes

Phylum Nematoda

Phylum Annelida

Phylum Arthropoda

Phylum Mollusca

Phylum Echinodermata

Phylum Protochordata

Phylum Vertebrata

Let us now look at some important features of each Phylum.