--%>
Assignment Help - homework help

Echinoderms characterization

According to illustrations of representing beings, how are echinoderms characterized, fundamental morphology, kind of symmetry, germ layers and coelom, respiratory system, digestive system, excretory system, circulatory system, nervous system and kinds of reproduction?

E

Expert

Verified

Illustrations of representing beings: sea urchin, sea cucumber and starfishes. Fundamental morphology: calcareous endoskeleton with spines and ambulacral system. Kind of symmetry: secondary radial. Germ layers and coelom: triploblastics and coelomates. Digestive system: complete and deuterostomes. Respiratory system: non-existent. Circulatory system: non-existent. Excretory system: non-existent. Nervous system: simple, nerve network with no ganglia or cephalization. Kinds of reproduction: sexual with the larval stage.

   Related Questions in Biology

  • Q : DNA duplication procedure Write the

    Write the name of the DNA duplication procedure? What is the major enzyme which participates in it?

    		•
  • Q : Characteristic aspects of mammals Write

    Write down the characteristic aspects of mammals?

    		•
  • Q : Complete a paper demonstrates effective

    In FIN 620 each student is required to complete a paper that demonstrates effective communication skills, research competence, and technology fluency. The paper should demonstrate the ability to clearly communicate ideas about financial management in a professional ma

    		•
  • Q : Explain Pharmacodynamics

    Pharmacodynamics is the study of therapeutic value of drugs on the body. A graphical explanation of the Pharmacokinetics and Pharmacodynamics is given in Lapham and is reproduced here.

    Q : Hypothesis for plant tissue Specify the

    Specify the best identification hypothesis for the plant tissue seen under microscope having most cells going through cell division?

    		•
  • Q : Effects of ozone exposure to aspen and

    During the past 12 years, scientists have been exposing stands of aspen and birch to elevated levels of atmospheric O? at a facility (Aspen FACE) near Rhinelander, WI. The relative effects of O? exposure on stand growth has varied considerably am

    		•
  • Q : Explain how heart contraction triggered

    Explain how heart contraction triggered?

    		•
  • Q : Problem relating to allowance The 2010

    The 2010 annual report of Willamette Valley Vineyards, Inc., comprised the following information associating to their allowance for doubtful accounts: Balance in allowance at the starting of the year $54,330, accounts written off throughout the year $51,467, balance i

    		•
  • Q : Define Leadership Leadership :

    Leadership: Leadership is a critical role in any organization. It comprises stating the direction of a team and communicating it to the people, motivating, inspiring and em-powering them to contribute to attaining organizational success. The leadershi

    		•
  • Q : Describe BID Administration BID

    BID ADMINISTRATION: Generally a RFP is prepared by a set of team than a single person of single team. BID office is created for similar purpose. Collectively working in a particular RFP or BID refers to BID administration. Generally a BID owner is ide

    		•