--%>
Assignment Help - homework help

Fecundation in amphibians is external or internal

Whether fecundation in amphibians is external or internal? Also explain whether amphibians are evolutionarily proximal to fishes or to reptiles?

E

Expert

Verified

In majority of the amphibian species, fecundation is external. This trait is common in bony fishes too and it proove that the reproductive system and the embryonic development of amphibians are inherited from the osteichthyes. Although they have external fecundation, amphibian female and male copulate to stimulate for the liberation of egg and sperm cells. This process does not illustrate internal fecundation as the gametes unite in the water.

   Related Questions in Biology

  • Q : What is Business process Reengineering

    Business process Reengineering: Business Process Reengineering (abbreviated as BPR) is, in computer science and management, an approach aspiring at enhancements by means of elevating effectiveness and efficiency of the business process which exist wit

    		•
  • Q : Describe schistosomiasis Describe

    Describe briefly the term schistosomiasis?

    		•
  • Q : Interpersonal communication Define, in

    Define, in your own words, interpersonal communication. Identify and explain the three models of communication. Identify the strengths and limitations (restrictions) of each model ?

    		•
  • Q : What is plasmids Write about plasmids?

    Write about plasmids?

    		•
  • Q : Colors of electromagnetic spectrum

    Describe the colors of the electromagnetic spectrum which is absorbed by plants? What would occur to photosynthesis when the green light waves that reach a vegetable were obstructed?

    		•
  • Q : Protective structures of the central

    Describe the protective structures of the central nervous system existed in vertebrates?

    		•
  • Q : Describe Materials Planning Materials

    Materials Planning: It is the planning and control of functions supporting the complete cycle (that is, flow) of materials, and the related flow of information. Such functions comprise (A) identification, (B) cataloging, (C) standardization, (D) requi

    		•
  • Q : Blood vessels which carry venous blood

    Name the blood vessels which carry venous blood to the heart? Also name the blood vessel which collects the arterial blood from heart?

    		•
  • Q : Facilitated diffusion-enzymatic

    How facilitated diffusion presents similarities with the enzymatic chemical reactions?

    		•
  • Q : Significance of Personality -

    Personality factors are extremely important in organizational settings; often the 'wrong' kind of personality causes undesirable tensions and worries in organizations. The costs of such tensions and worries are enormous when we interpret them from the point of view of employee-employee relations,

    		•