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Question
Which of the following is a pseudocoelomic organism?
Which of the following is a pseudocoelomic organism?
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Solution
The correct option is B Aschelminthes
When a body cavity lined with mesoderm is present in between the gut and the body wall, it is known as a coelom. All the members of Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordata and Chordata are coelomic animals.
The animals in which a body cavity is absent are called acoelomates. Example: Platyhelminthes.
In a few organisms, the body cavity is not lined by mesoderm. Instead, the mesoderm is distributed between the ectoderm and the endoderm. They are known as pseudocoelomates.
Example: Aschelminthes.
When a body cavity lined with mesoderm is present in between the gut and the body wall, it is known as a coelom. All the members of Annelida, Arthropoda, Mollusca, Echinodermata, Hemichordata and Chordata are coelomic animals.
The animals in which a body cavity is absent are called acoelomates. Example: Platyhelminthes.
In a few organisms, the body cavity is not lined by mesoderm. Instead, the mesoderm is distributed between the ectoderm and the endoderm. They are known as pseudocoelomates.
Example: Aschelminthes.
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