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4. The body of some animals is made up of three layers of cells, the outer ectoderm, the middle mesoderm and the inner endoderm. The coelom or the body cavity is the space enclosed by the mesoderm where the internal organs are suspended. The animals that have a true body cavity are known as coelomic or eucoelomic. For example, organisms belonging to phylum Annelida.
5. Malpighian tubule is the excretory organ in Cockroaches .
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4. The body of some animals is made up of three layers of cells, the outer ectoderm, the middle mesoderm and the inner endoderm. The coelom or the body cavity is the space enclosed by the mesoderm where the internal organs are suspended. The animals that have a true body cavity are known as coelomic or eucoelomic. For example, organisms belonging to phylum Annelida.
5. Malpighian tubule is the excretory organ in Cockroaches .
"For more queries just ask in a separate thread here on the forum and our experts will try to help you out as soon as possible"
Regards