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What is the Phyla of Animalia Kingdom?
Phylum – Nematoda
Bilaterally symmetrical body
Triploblastic
Body shape – cylindrical
Lack of organs. Presence of tissues
Presence of pseudo-body cavity (not real, sort of a body cavity)
Examples of organisms belonging to this phylum – Roundworms, Tapeworms, Ascaris
Phylum – Annelida
Bilaterally symmetrical
Triploblastic
True body cavity
Well-differentiated organs packed inside the body cavity
Differentiation of organs is seen in segments of the body
Habitat of organisms – fresh water, sea, and land
Examples of organs belonging to this phylum – Earthworms and Leeches
Phylum – Arthropod
Anthro – jointed; pod – legs
The largest group of animals
Bilaterally symmetrical and segmented
The Body cavity is filled with blood as blood does not flow through blood vessels. The lack of well-defined blood vessels is known as the open circulatory system
Examples of organisms belonging to this phylum – Butterflies, Cockroaches, Spiders, Crabs, Scorpions, and Houseflies
Phylum – Mollusca:
Bilateral symmetry
Reduced coelom cavity
Segmentation is seen
Presence of kidney-like organs for the purpose of excretion
Presence of foot for locomotive activity
Examples of organisms belonging to this phylum – Snails and Mussels
Phylum – Echinodermata
Echinos – hedgehog; derma – skin (in Greek). Spiny, skinned animals
Triploblastic
Presence of coelom body cavity
Locomotive activity by using a special tube system driven by water
Presence of hard calcium carbonate (CaCO3) structures that form bones and skeleton system
Found in marine habitat
Examples of organisms belonging to this phylum – Starfish and Sea Urchins
Phylum – Protochordata
Bilaterally symmetrical
Triploblastic
Presence of coelom body cavity
Presence of advanced body design, called notochord during some stages of growth. A notochord is a rod-like structure running on the ventral side of the body, supporting the back of an animal and separating the nervous tissue from the gut
Marine habitat
Examples of organisms belonging to this phylum – are Amphioxus, Herdemania, Balanoglossus
Phyla of Animalia Kingdom Homework Help