--%>
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 : Chordates and invertebrates Compare the

    Compare the tubular-dorsal nervous system in chordates to the nervous pattern in the invertebrates?

    		•
  • Q : Explain the spinal cord Explain the

    Explain the spinal cord? Out of which elements is the spinal cord comprised?

    		•
  • Q : Pteridophytes and phanerogamic plants

    Why the pteridophytes are better adapted to the dry land as compared to the bryophytes? Were pteridophytes always less abundant rather than the phanerogamic plants?

    		•
  • Q : OLAP and OLTP Explain the difference

    Explain the difference between OLAP and OLTP?

    		•
  • Q : Presentation Communication -

    It is a formal, well-prepared talk on a specific topic delivered to a knowledgeable and interested audience. Generally, the tone used in presentation is serious and business like. The purpose is to give information or to persuade. In industry and commerce, the term 'presentation' has come

    		•
  • Q : Competitive barriers of industry to

    Competitive barriers of industry to overcome:1. Advertising Since our product is slightly different product, products from existing or potential competitors cannot be fully substituted in place of the strong playe

    		•
  • Q : Purpose of vitellus in the vertebrate

    Elaborate the purpose of the vitellus in the vertebrate egg?  How are these eggs classified in relation to the quantity of vitellus within them?

    		•
  • Q : Blood vessels which carry venous blood

    Name the blood vessels which carry venous blood to the heart? Also name the blood vessel which collects the arterial blood from heart?

    		•
  • Q : Regulating the renal function What do

    What do you know about an evolutionary explanatory hypothesis for the secretion by the heart of hormone which regulates the renal function? Name that particular hormone?

    		•
  • Q : Glucose molecule runs Krebs cycle twice

    Why we can say that each glucose molecule runs Krebs cycle twice?

    		•