--%>

Evolutionary cephalization

With the examples of invertebrate nervous systems, how process of the evolutionary cephalization can be explained?

E

Expert

Verified

Taking the example of invertebrates it is generally observed that the evolution increases the complexity of organisms to be accompanied through the convergence of nervous cells to the special structures in order to control and command: the ganglia and the brain. Within the simple invertebrates, such as cnidarians, the nervous cells are generally not concentrated however, they are found dispersed within the body. In the platyhelminthes beginning of the cephalization with anterior ganglion concentrating neurons is previously verified. Within the arthropods and annelids existence of the cerebral ganglion is palpable. In the cephalopod molluscs, the cephalization is greater and the brain controls the nervous system.

   Related Questions in Biology

  • Q : How sponges save themselves against

    How do sponges try to save themselves against damage from the environment? Is that process efficient or rudimentary?

  • Q : Amphibians and Reptilia Compared to the

    Compared to the amphibians provide an example of evolutionary novelty which is present in beings of the class Reptilia which prevents the loss of water through the skin?

  • Q : Valve separating the compartments

    Specify the first heart chamber in which the blood enters? Where does blood go after passing that particular chamber? What is the name of valve which separates the compartments? Why is that valve essential?

  • Q : Face to Face Communication -

    This type of communication may, at the first thought, appear to be identical with oral communication. However, it is possible to visualize certain situation on which the two get distinguished. Telephonic conversation is oral but we cannot call it face-to dace communication. the presidents of two

  • Q : What is Marketing Mix Marketing Mix: An

    Marketing Mix: An intelligent marketing mix is the mix of various marketing tactics intended to implement the market strategy. The most accepted marketing mix is the defined in terms of 5 P’s-product, promotion, place, price and people.

  • Q : Typical localization of tropical forests

    Write down the typical localization of tropical forests concerning the latitude.

  • Q : Fungal diseases transmit by animal feces

    Write down the some fungal diseases transmitted by the animal feces?

  • Q : What is tablet excipients What is

    What is tablet excipients? Briefly explain it.

  • Q : State Equal Employment Opportunity or

    Equal Employment Opportunity (EEO): This is making sure that everybody has equivalent access to accessible employment by: • Making sure that workplaces are free from harassment and discrimination and,&bu

  • Q : Why amino acids significant for protein

    Why is the immediacy between ribosomes and amino acids significant for the protein formation? And also write down enzyme which catalyzes that reaction?