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Cosmosapiens

Discussion in 'Factor X' started by nonchalant, Mar 31, 2017.

  1. nonchalant

    nonchalant Silver

    Nervous systems
    On page 399 of John Hind's book, he says flatworms were among the first invertebrates to exhibit bilateral symmetry (they have two parallel nerve cords running the length of the body, with eyespots at one end.) It is easy for us here to see that the eyespots would provide energy down both nerve cords. Hind says that the question of why bilateral symmetry is important hasn't been satisfactorily answered. But looking at the picture on the next page, wouldn't electricity traveling down the parallel cords make a nice magnetic induction field inside to benefit the worm?

    And looking at the picture of the hydra, the nerve network surrounding the tubular body would create a magnetic induction coil. When it is firmly attached to the earth, it has plenty of energy for that mouth at the top and all the tentacles. Aren't tube-shaped organisms some of the first fossils, whether they had a nerve network or a bilateral system?

    Speaking of eyespots... Wouldn't the eyespots create more energy for the invertebrate, to allow it to move more often, or even swim freely? Which came first, the eye, or the ability to swim (rather than drift)?
     
    Lahelada likes this.
  2. Jack Kruse

    Jack Kruse Administrator

    Hind says that the question of why bilateral symmetry is important hasn't been satisfactorily answered. But looking at the picture on the next page, wouldn't electricity traveling down the parallel cords make a nice magnetic induction field inside to benefit the worm? yes........but what increases the effect? A twist.......that is why dna twists and why the neural tubes of all higher animals twists into the neocortex..........= sulci and grooves
     
    Brent Patrick and Lahelada like this.

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