In this article we will discuss about the circulatory system of calotes. Transportation of various substances within an organism is conducted by the circulatory system. The circulatory system consists of cardiovascular system and lymphatic system. The cardiovascular system includes: (a) The heart, (b) The blood, (c) Arteries and (d) Veins. (a) Structure of Heart: The heart of Calotes lies in [...]
In this article we will discuss about the external structures of scoliodon. This will also help you to draw the structure and diagram of scoliodon. Scoliodon is an elongated spindle-shaped animal. It has a laterally compressed body. A fully developed specimen of this genus attains a length of about 60 cm. Body is divisible into head, trunk and tail. Head [...]
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 [...]