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SIX PHYLA:
Similarities and
differences

***This is just a summarized version of the phyla
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They are asymmetrical
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They have no
tissue layers; they are however multicellular
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They have no gut
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This phla is mostly found in aquatic habitats
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They are radially symmetrical
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They have two cell
layers (endoderm and ectoderm) meaning that
they are diploblastic
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They have one gut
opening (feed and excrete with one gut)
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jellyfish and coral

Platyhelminthes
Some examples of Platyhelminthes would be
the flatworm and the tapeworm
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A small amount of cephalisation
takes place
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They are
acoelomate and have no blood system
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They can be found in
aquatic or moist soil either living freely or in
the body of a host
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Like Platyhelminthes they are
bilateral
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They are triploblastic
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They have two gut
openings meaning there is a through gut
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Athropoda
Athropoda
Some examples of Arthropods are insects,
spiders and crustaceans
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They are bilaterally
symmetrical
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They are triploblastic and coelomate
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They have a
through(complete gut) with an anus and a
mouth
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This is the
most advanced phylum in the animal kingdom
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They are
triploblastic
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They
have to gut openings
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They
Chordates have a closed blood system
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