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Cephalization
The presence of of ahead in the anterior region which is concentrated by nervous cells such as the ganglion ,brain and even sensory organs
Peritoneal cavity
The form in which coelum is present in humans
Coelum
A fluid present in between the alimentary canal and the body walls✨️
Coelumates
Organisms that have coelum
Cephalization
The development of a head in the anterior region, concentrated with nervous cells like the ganglion, brain, and sensory organs.
What are invertebrates?
Invertebrates are animals that lack a backbone or vertebral column.
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