--%>
Assignment Help - homework help

Tubular-dorsal nervous system of chordates

Whether tubular-dorsal nervous system of chordates is associated with the radial or lateral symmetry? How does this explain the complexity level of nervous system achieved by the vertebrate evolutionary branch?

E

Expert

Verified

Tubular and dorsal nervous system of the chordates is correlated to cephalisation, within these animals and also to bilateral symmetry. Presence of the neural integrating centers along with concentration of neurons in brains and spinal cord permitted the increase of interaction complexity between these animals and the environment. Receptor (afferent conduction) and efferent (regulatory, motor and behavioural reactions) functions come out more sophisticated in chordates because of the presence of more well-built neural networks. These traits have been preserved through the evolution as they give the adaptive advantage to their owners.

   Related Questions in Biology

  • Q : Cells The stage of meiosis where cells

    The stage of meiosis where cells become haploid

    		•
  • Q : Function of the blood State main

    State main function of the blood?

    		•
  • Q : How are the sensory receptors

    According to the stimuli they assemble how are the sensory receptors categorized?

    		•
  • Q : Describe Regulatory Affairs Regulatory

    Regulatory Affairs: It is a comparatively new profession that has developed from the desire of governments to protect public health by controlling the efficacy and safety products in regions comprising pharmaceuticals, medical devices, pesticides, vet

    		•
  • Q : Is mRNA molecule codifies only one type

    Is mRNA molecule codifies only one type of the protein?

    		•
  • Q : Activity in the cell nucleus In the

    In the stage when the cell is not dividing (or interphase) is there activity in the cell nucleus?

    		•
  • Q : Membrane which delimits the nucleus

    What is the name of the membrane which delimits the nucleus? To which component the cell structure which membrane is contiguous?

    		•
  • Q : What do you mean by Production Lead Time

    Production Lead Time: It is the time interval between the placement of a contract and receipt into supply system of materiel bought. Two entries are given: (i) Initial--The time interval when the item is not under production as of the date of contract

    		•
  • Q : Audio-visual Communication -

    This type of communication combines the auditory and the visual, that is, while people are observing something on the television or cinema screen, they are also hearing narrative or descriptive remarks so that what they see is adequately supplemented and there is a more abiding impression on thei

    		•
  • Q : Define Career Pathing Career Pathing :

    Career Pathing: It is the process employed by an employee to chart a course in an organization for his or her career path and career growth. Career pathing includes understanding what skills, knowledge, personal characteristics, and experience are nee

    		•