--%>
Assignment Help - homework help

Characterizations of amphibians

Write the characterizations of amphibians according to illustrations of representing beings, fundamental morphology, skin, circulation, respiration, nitrogen waste, thermal control and kinds of reproduction?

E

Expert

Verified

Illustrations of representing beings: frogs, toads and salamanders. Fundamental morphology: two pairs of limbs, hydrodynamic larvae and eyelids. Skin: permeable and moist, mucous glands. Respiration: pulmonary and cutaneous, branchial in larval phase. Circulation: closed, in-complete, heart with three chambers with no inter-ventricular septum. Nitrogen waste: urea. Thermal control: heterothermic. Kinds of reproduction: sexual, external fecundation, water dependant, and aquatic larval phase.

   Related Questions in Biology

  • Q : What is Value-Added Processes

    Value-Added Processes: The enhancement a company provides its service or product before giving the product to customers. It is used to illustrate instances where a firm takes a product which may be seen a homogeneous product, with little differences i

    		•
  • Q : Objectives of Human Resource Planning

    The mainly three objectives of human resource planning are as follows: i) To ensure optimum use of the human resources currently employed ii).To assesses or forecast the future skill requirements. iii) To provide the control measures to ensure th

    		•
  • Q : Define Cataract Cataract : A Cataract

    Cataract: A Cataract is a clouding of Crystalline Lens within the eye. This is not a film over the eye. The Crystalline Lens is made up of soft flexible protein which is surrounded by an elastic membrane termed as Capsule. Whenever the soft, normally

    		•
  • Q : Formations of egg cells described

    Indicating respective ploidy and the name of all involved cells how can the formations of egg cells through germ cells described?

    		•
  • Q : Memory trace or memory engram Briefly

    Briefly define the term memory trace or memory engram?

    		•
  • Q : Define the term Co-ordination number

    Define the term Co-ordination number?

    		•
  • Q : Description of vitamins Give a brief

    Give a brief description of vitamins? And also write down the main vitamins needed by humans?

    		•
  • Q : Name the main cells of connective

    Name the main cells of connective tissue proper? Describe the name provided to the intercellular material which surrounds such cells?

    		•
  • Q : Contingency Approach Contingency

    Contingency Approach Another approach of modern organization theory is contingency approach. As contingency approach is an extensio

    		•
  • Q : What is Incentive Planning Incentive

    Incentive Planning: Incentive plans are element of an employee's compensation or pay. The incentive plan offers an employee the chance to raise his annual pay based on either company or individual performance. Incentive plans are a mode for companies

    		•