--%>
Assignment Help - homework help

Fixation and movement to echinoderms

Name the system which allows fixation and movement to echinoderms?

E

Expert

Verified

The system which allows movement and fixation to substrates in the echinoderms is termed as ambulacral system. In such animals water enters via a structure termed as madreporite, passes via channels and reaches the ambulacral feet in the undersurface of the body. In an ambulacral area in contact with the substrate, there are tube feet emptied and filled by water therefore acting as suckers.

   Related Questions in Biology

  • Q : How calcium ions participate in the

    How calcium ions participate in the muscle contraction? Why do both muscle contraction and muscle relaxation use energy?

    		•
  • Q : Embryonic development in earthworms Is

    Is embryonic development in earthworms indirect or direct? Answer: In earthworms there is no larval phase; therefore the embryonic development is direct.

    		•
  • Q : Psychological factors of ethical

    What are the Psychological factors of an ethical business decision ?

    		•
  • Q : Why tropical forests are as well known

    Why the tropical forests are as well recognized as stratified forests?

    		•
  • Q : Catabolism and anabolism State the

    State the difference between catabolism and anabolism?

    		•
  • 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 : EGO Force of Freudian Theory -

    The ego comes into being because or the limitations of the id in dealing with the real world. Through learning and experience, the ego develops the individual's capabilities of realistic thinking and ability to deal appropriately with his environment. It operates on what is called the reality pri

    		•
  • Q : In which situation aerobic cells carry

    Under which situations do aerobic cells carry out fermentation?

    		•
  • Q : Tolerance in Homo neanderthalensis Homo

    Homo neanderthalensis was an extinct human species that lived in Europe and western Asia, and members of this species subsisted exclusively on hunted and gathered foods. Based on your knowledge of milk tolerance in humans, would you suppose that Homo neanderthalensis

    		•
  • Q : Define Mumps Mumps : This is an

    Mumps: This is an infectious disease that usually attacks the children. Symptoms are swelling of the glands on the temple convoyed by fever.   

    		•