True coelom is not present in animals of:
1) platyhelminthes
2) Annelida
3) Echinodermata
4) Arthropoda
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3
The correct answer to the question is Option 1) platyhelminthes.
True coelom is not present in animals of platyhelminthes.
These animals are usually the soft bodied invertebrates such as tapeworms and flatworms.
Some of them live as parasites on other animals.
They do not have a body cavity and are acoelomate.
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1
Usually, true coelom is present in all kinds of animals.
However, there are certain organisms that do not have true coelom, one such example is the first option, which is platyhelminthes.
These are the worm kind of small organisms that do not have coelom present in their bodies.
They have soft and smooth kind of bodies.
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