--%>
Assignment Help - homework help

Is fecundation in amphibians internal or external

Is fecundation in amphibians internal or external? In this feature are amphibian’s evolutionarily proximal to fishes or to reptiles?

E

Expert

Verified

In the majority of amphibian species, fecundation is external. This feature is very common to bony fishes as well and it exhibits that the reproductive system and the embryonic growth of amphibians are a heritage from the osteichthyes. Curiously though having external fecundation amphibian female and male copulate to stimulate the release of sperm and egg cells. This phenomenon doesn’t characterize internal fecundation as the gametes unite in water.

   Related Questions in Biology

  • Q : Ecological and economic importance of

    What are examples of the ecological and economic importance of molluscs?

    		•
  • Q : Structural representation of carboxyl

    Write down the structural representation of carboxyl group?

    		•
  • Q : Part of female reproductive system

    Specify the organs which form the part of female reproductive system?

    		•
  • Q : Working of hypophysiscorpus luteum

    Explain the working of hypophysiscorpus luteum negative feedback? What is the name specified to atrophied corpus luteum after this process?

    		•
  • Q : Project Planning-Stages of Projects

    Project Planning-Stages of Projects: A) Set project objectives B) Organize the project team C) Develop a clear project brief, specifying the scope of the project the responsibilities of team members D) Rough estimat

    		•
  • Q : Define Strategic Planning Strategic

    Strategic Planning: It is the procedure by which an organization visualizes its future and develops the essential procedures and operations to attain that future. The fundamental steps of the strategic planning procedure comprise information analysis

    		•
  • Q : Main function of secretin in the

    Where secretin is produced and what is the main function of secretin in the digestive process? Answer: Secretin is made up in the duodenum. The chyme acidity causes

    		•
  • Q : State User Training & Support User

    User Training & Support: To realize the most benefit from your technology investment, user training is very significant. And not presently training that “blankets” the fundamental features of a software program. User’s requiremen

    		•
  • Q : Ossicular chain of the middle ear How

    How is the sound vibration captured by the tympanum transmitted via the ossicular chain of the middle ear?

    		•
  • Q : How problem of platyhelminthes resolved

    As compared to platyhelminthes which physiological problem has the cylindrical body of nematodes brought? How was that problem resolved?

    		•