In this article we will discuss about:- 1. Introduction to Metamorphosis in Amphibians 2. Causation of Metamorphosis in Amphibians 3. Tissue Reactivity 4. Induction. Introduction to Metamorphosis in Amphibians: In amphibians, metamorphosis is associated in typical cases with a transition from an aquatic to a terrestrial mode of life. Super-imposed on this change in environment, there is in the anurans [...]
In this article we will discuss about:- 1. Digestive System of Frog 2. Respiratory System of Frog 3. Circulatory System 4. Excretory System 5. Nervous System 6. Sense Organs 7. Reproductive System. Digestive System of Frog: Frog is a carnivorous animal. It feeds on small insects, spiders, worms, tadpoles and even smaller frogs. Generally only moving animals are caught and [...]
In this article we will discuss about the respiratory system of toad. Two modes of respiration are observed in the life-history of toad-terrestrial respiration, and aquatic respiration. (i) Terrestrial mode of Respiration: Toad is capable of taking in air by the lungs and skin. Respiration with the help of lung is called pulmonary respiration and that with the skin is [...]