In this article we will discuss about Extinct Dinosaurs:- 1. Types of Extinct Dinosaurs 2. Causes of Dinosaur Extinction 3. Biological Views. Types of Extinct Dinosaurs: Reptile-like Dinosaurs (Saurischia): The earlier members of this order were small, bipedal and carnivorous and resembled the ancestral form—the Thecodont. Later from them arose two divergent groups: Theropoda and Sauropoda. I. Suborder 1. Theropoda: [...]
In this article we will discuss about Snake Venom:- 1. Nature of Venom 2. Use of Venom 3. Types. Nature of Venom: a. Snake venom is a clear, transparent, pale yellow or straw-coloured fluid having a specific gravity of 1.03-1.07. b. The pH of the venom varies in different species, e.g., Russell's viper's pH is 5.8 and that of cobra [...]
In this article we will discuss about Calotes:- 1. Subject Matter of Calotes 2. Structure of Calotes 3. Sense Organs 4. Ecdysis. Subject Matter of Calotes: Example of the Class Reptilia — Calotes: Calotes versicolor is a common Indian garden lizard. It is often called a blood-sucker but in reality, it does not suck blood. The colour of the body [...]