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.
What are the major properties of water which make water special for life?
Describe the two divisions of autonomic nervous system?
Explain the functions of relaxin in brief?
How the ovulation date is estimated with the control of the woman's body temperature?
Graphical User Interface (GUI): It stands for "Graphical User Interface," and is pronounced as ‘gooey.’ It refers to the graphical interface of a computer which permits users to click and drag objects with a mouse rather t
Describe briefly the term muscle tissues? How is the function of this tissue related to typical features of its cells?
Explain the embryonic sac? Specify the cells which form the embryonic sac? Specify their ploidies?
Group behavior in an organization is quite complex. As shown in figure below, group behavior is influenced by a number of factors, which can be classified as follows: 1) External factors 2) Group members' resources
Multi-Site Operations: The business works concentrates in multi-site operations and is expert in making and delivering solutions for efficient management of all your sites. Whether you administer office blocks; shopping centres; apartments or fl
How do placental mammals replicate?
18,76,764
1934714 Asked
3,689
Active Tutors
1418856
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!