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Which term is used for the animals possessing a body cavity that is not lined by mesoderm?
Which term is used for the animals possessing a body cavity that is not lined by mesoderm?
What structure is mesodermally derived and forms a rod-like structure on the dorsal side during embryonic development?
What structure is mesodermally derived and forms a rod-like structure on the dorsal side during embryonic development?
Which group of animals are classified as coelomates?
Which group of animals are classified as coelomates?
What type of animals have a body cavity that is lined by mesoderm?
What type of animals have a body cavity that is lined by mesoderm?
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Which animals are classified as acoelomates?
Which animals are classified as acoelomates?
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What is the term for the phenomenon where the body is internally and externally divided into segments?
What is the term for the phenomenon where the body is internally and externally divided into segments?
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In which animals is the mesoderm present as scattered pouches between ectoderm and endoderm?
In which animals is the mesoderm present as scattered pouches between ectoderm and endoderm?
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What term is used for animals with a third germinal layer, mesoderm, between ectoderm and endoderm?
What term is used for animals with a third germinal layer, mesoderm, between ectoderm and endoderm?
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Which characteristic defines animals possessing metamerism?
Which characteristic defines animals possessing metamerism?
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Animals like annelids and molluscs fall under which category based on their body cavity?
Animals like annelids and molluscs fall under which category based on their body cavity?
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