kingdom animalia Sicyon
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Kingdom Animalia
This kingdom consists of multicellular eukaryotic organisms which lacks cell wall. They depend directly or indirectly on plants for their food. Also, most of the animals obtain nutrition by ingesting other organisms or decomposing organic material. All the animals comes under this kingdom including humans. In this kingdom the organisms reproduce sexually with differentiated sex cells.
General Charcteristics:
Eukaryotic & Multicellualar
They have no Cell Walls
All are Heterotrophic
Mostly Reproduce Sexually
Most of them show Locomotion
It comprises nine Phyla but Here I am only discussing phylum Chordata as this phylum contains most important species. It includes fishes,amphibians, reptiles, birds and mammals which contributes most of the earth’s population.
The main classes of phylum chordate are Pisces, Amphibia, Aves and Mammalia
Class Pisces
These are fishes. A number of fishes have Skelton mad u cartilage and others made up of bone. They include catfish, Nile perch, lungfish, rayfish and dogfish.
General characteristics
They have gills for gaseous exchange.
Movement is by means of gills
Their bodies are covered with scales.
Have streamlined body.
They don’t posses middle or external ear.
Body temperature changes according to temperature of surrounding
Eyes covered with nictating membrane.
They poses a lateral line system for sensitivity.
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Answer:
Kingdom Animalia constitutes all animals. Amongst the five kingdoms, the largest kingdom is the animal kingdom. Animals are multicellular eukaryotes. However, like plants, they do not possess chlorophyll or a cell wall. Therefore, members of the animal kingdom exhibit a heterotrophic mode of nutrition. Kingdom Animalia has been classified into ten different subphyla based on their body design or differentiation.
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