--%>
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 : Explain vascular bundles Explain the

    Explain the vascular bundles? How does configuration of the vascular bundles in the stem differentiate monocots from the dicots?

    		•
  • Q : Age of universe Specify how old is the

    Specify how old is the universe?

    		•
  • Q : Anatomy - Study of internal structure

    Anatomy deals with study of internal structure which can be observed with unaided eye after dissection. Anatomy is a branch of biology or medicine which is the consideration of the structure of living things. This is a general term which includes plan

    		•
  • Q : Description of nutrient Give a brief

    Give a brief description of nutrient?

    		•
  • Q : PLANNING PLANNING Meaning and

    PLANNING Meaning and definition: planning may be defined as deciding in advance what is to be done in future. It is the

    		•
  • Q : Explain the term cell theory Explain in

    Explain in brief the term cell theory?

    		•
  • Q : Security issues of e-commerce A local

    A local manufacturer of work gloves and gardening gloves has been enjoying moderate success in its local markets with a physical sales team. The president is convinced that an e-commerce site could significantly increase sales, particularly on the international market

    		•
  • Q : Main signs of diabetes Specify three

    Specify three main signs of the diabetes?

    		•
  • Q : Define American trypanosomiasis

    American trypanosomiasis: It is commonly known as Chagas disease, caused by Trypanosoma cruzi, is a parasite, found mostly in blood sucking triatomine insects. The organism T cruzi and infection in humans were first introduced in 1909

    		•
  • Q : Number of carbon-dioxide molecules

    Determine the number of carbon-dioxide molecules which are liberated after each cycle of Krebs cycle? For a single glucose how many carbon-dioxide molecules were already released by the aerobic respiration at that point?

    		•