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?
Expert
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.
Explain about the systole and diastole.
Write down the some representatives of the echinoderm phylum?
Write the constitution of cartilaginous matrix?
Explain the inflammation?
State the significance of glucose blood level for the health of human?
Explain the working of contraceptive diaphragm? Also mention the limitations of this contraceptive method?
Explain the meaning of zone of equivalence?
Elements of scientific management The main elements of scientific management are : i) work study involving work measurement and work improvement thr
Briefly describe supremacy of TLC over paper chromatography?
What do you mean by the salivary digestive enzyme? Which kind of food it can digest and into what kind of the smaller molecules it transforms the food?
18,76,764
1934067 Asked
3,689
Active Tutors
1438807
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!