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Using examples of invertebrate nervous systems how can the process of evolutionary cephalization be described?
Considering the instance of invertebrates it is observed that evolution makes the enhancing of the complexity of the organisms to be accompanied by convergence of nervous cells to special structures for controlling and commanding: the ganglia and the brain. In easy invertebrates, like cnidarians, the nervous cells are not concentrated but they are found dispersed in the body. In platyhelminthes a starting of cephalization with the anterior ganglion concentrating neurons is already verified. In annelids and arthropods the existence of a cerebral ganglion is evident. In cephalopod molluscs the cephalization is even big and the brain commands the nervous system.
The protocol includes four treatment modalities: A = Mechanical Debridement In this the patients are re-instructed in oral hygiene and motivated to initiate and continue m
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Explain Metameric in detail. A body plan which consists of a series of identical units, metameres, repeated down longitudinal axis of the animal. Every metamere contains identi
Codon is the group of three consecutive nucleotides within the messenger RNA (mRNA) which encodes a message to initiate translation, to incorporate the specific amino acid into th
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