9. collect information about
animals in your surrounding
at least 20. Identify them
and classify them according
to the following schemes
like-
Kingdom
Phylum and division
class order
family genus
species
Also identify the
characteristic feature of
following group where these
animals are placed.
Answers
Answer: here 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 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.
Phylum Porifera
These are the simplest multicellular animals, found mainly in marine habitats. These organisms have pores all over the body. They have a canal system that helps in circulating water and food particles and oxygen. The body design shows minimal differentiation and division of tissues. Commonly called as Sponges, some of the examples are Spongilla, Sycon etc.
Phylum Coelenterata
These organisms show more body differentiation. They live in water. The body has a sac-like cavity, with a single opening for ingestion an egestion. These animals have two germ layers and hence are called diploblastic. You can see these animals living solitarily or n colonies. Examples include Jellyfish, Sea Anemone, and Hydra.