--%>
Assignment Help - homework help

Arthropods characterization-morphology-symmetry-germ layers

According to examples of representing beings, how are arthropods 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: cockroaches, crabs, lobsters, flies, shrimps, spiders, scorpions and mites. Fundamental morphology: segmented body (or metameric), articulated limbs, periodic ecdysis and chitinous exoskeleton. Kind of symmetry: bilateral. Germ layers and coelom: triploblastics and coelomates. Digestive system: complete. Respiratory system: tracheal in insects, branchial in crustaceans, tracheal and book lungs in arachnids. Circulatory system: open, hemocyanin in arachnids and crustaceans. Excretory system: malpighian tubules in insects, malpighian tubules, green glands incrustaceans and coxal glands in arachnids. Nervous system: ganglial. Kinds of reproduction: sexual, with or without larval phase in insects and crustaceans, metamorphosis in various insects, no larval phases in arachnids.

   Related Questions in Biology

  • Q : Transferring Risk-Develop Risk Response

    Transferring Risk: Pass risk to another party – if it occurs, they pay the consequences, not you: A) Fixed price contracts: remember to assess w

    		•
  • Q : Significant of maternal milk for immune

    What is the maternal milk significant for the immune safety of the baby?

    		•
  • Q : Where CRM is initially used Where CRM

    Where CRM is initially used? This stand for Customer Relationship Management. Generally it deals along with Customers and their Contacts, Address and so on.

    Q : Input Factor - Group Effectiveness -

    I.            Organizational setting: if group members are in close proximity to one another in the work setting, they would interact more, and sentiments and affinities would develop faster, if the work flow technology makes

    		•
  • Q : Five Stage Model-Group Development -

    This group development model given by Tuckman and Jensen characterizes groups as proceeding through five distinct stages: forming, storming, norming, performing, and adjourning. 1)     Forming: this first stage is characterized by a great deal of uncer

    		•
  • Q : SCIENTIFIC MANAGEMENT SCIENTIFIC

    SCIENTIFIC MANAGEMENT             F.W.Tylor was the pioneer of the scientific management theory. He was a scie

    		•
  • Q : Why urinary volume raise if alcoholic

    Why does urinary volume raise when alcoholic beverages are ingested?

    		•
  • Q : Individual Level Conflict -

    Human behavior is need motivated. A person joins any organization basically to satisfy his varying needs. He faces a conflict within himself when he perceives that organization is not satisfying his needs in accordance with his perceived standards, in the words of Keith Davis,

  • Q : Excretion in fishes How excretion is

    How excretion is done in the fishes?

    		•
  • Q : Morphological feature of nematodes What

    What is the usual morphological feature of nematodes which distinguishes them from platyhelminthes?

    		•