--%>
Assignment Help - homework help

Morphological features of the echinoderms

What are the fundamental morphological features of the echinoderms?

E

Expert

Verified

Echinoderms, as the name points out (that is, echino = spiny, derma = skin), are creatures with spines initiated from an endoskeleton. Their endoskeleton is made up of calcareous plaques which besides spines have pedicellaria, small pincers employed to clean the body and to help in capturing of prey. They also exists a hydrovascular system termed as the ambulacral system. Adult echinoderms contain pentaradial symmetry; the radial symmetry in such animals is secondary, present just in adults.

   Related Questions in Biology

  • Q : Do worm infections stimulate the

    Out of which kind of defense cell, do worm infections stimulate the multiplication?

    		•
  • Q : What is dichogamy What is dichogamy?

    What is dichogamy?

    		•
  • Q : What is Product Development Product

    Product Development: A new service or product for the market is process developing. This kind of development is seem as the preliminary step in service or product development and includes various steps which should be completed before the product can

    		•
  • Q : Categorization of motivational theories

    Write down briefly the categorization of motivational theories?

    		•
  • Q : Illustration of negative feedback of

    What is an illustration of negative feedback of homeostatic regulation?

    		•
  • Q : Explain Consensus Building Consensus

    Consensus Building: It is also termed as collaborative problem solving or collaboration and is basically mediation of a conflict that comprises many parties. Generally, the conflict too includes multiple, complicated issues. Illustrations of consensus

    		•
  • Q : Substance which stimulates the

    Name the substance which stimulates the production of red blood cells? Also state the organ which secretes it? Under what situation does this secretion raise?

    		•
  • Q : Features of PRINCE PRINCE methodology

    PRINCE methodology has the following key features: it has a focus on business justification it has a clearly defined organisational structure it is suitable for a product based on a new approach it divides each project into manageable

    		•
  • Q : General opportunistic diseases in AIDS

    Moniliasis is one of the most general opportunistic diseases in AIDS. What is etiological agent of the moniliasis and what is the other name of disease? Why is monilia also common in the healthy newborns?

    		•
  • Q : Views of Conflict - Organizational

    1)     Traditional view: the early approach to conflict assumed that all conflict was bad. Conflict was viewed negatively, and it was used synonymously with such terms as violence, destruction, and irrationality to reinforce its negative connotation. Conflict,

    		•