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What is Animalia? Class 9 Science Diversity in Living Organisms

Animalia Class 9 Science Diversity in Living Organisms

 Animalia Class 9 Science Diversity in Living Organisms

What do you mean by Animalia?
Class 9 Science Live Classes : Animalia is a group of living organisms like multicellular eukaryotes. They do not have cell walls. The organisms belonging to this group are heterotrophs (Consume the food from the environment). They exhibit a high level of tissue differentiation, have well developed nervous system and specialized body organs. Most animals of this group are movable.
The animal kingdom is classified into different subphylum’s as follows:
Animalia Class 9 Science Diversity in Living Organisms
Phylum 1- Porifera
The organisms belonging to this group have holes.
The animals of this group are non- motile and are attached to some rigid support.
The organisms belonging to this group have pores throughout their body.
They have a canal system circulates the water throughout the body of these organisms to transport the food and oxygen.
These organisms are covered with a hard external layer or skeleton.
Examples of animals belonging to this group are Euplectella, Sycon, Spongilla.

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