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 reproductive system of toad. Sexes are separate. Sexual dimorphism is present in toad. During breeding season, a cushion-like thumb pad appears at the base of each innermost finger of the hand of male. Male is provided with a vocal sac opening into the buccal cavity. The impression of the vocal sac can [...]