Q. Absence of Coelome is known as
Solution:
Solution:
An acoelomate is an animal which lack a coelom, or body cavity. True body cavities form only in multicellular organisms with true tissues. An acoelomate is the simplest form of animals which have 3 true tissues. These tissues are the endoderm, mesoderm, and ectoderm, in that order from inside to out. In an acoelomate, these tissues touch back-to-back, without any space in between. The organs form within it, and are surrounded by the mesoderm. The ectoderm is the skin, while endoderm forms the digestive tract. An acoelomate is solid except for the digestive tract. Alimentary canal is surrounded by the mesenchyme. Eg: Flatworms.